31131828

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:103

約数の個数: 216

約数和(自身を含む): 105513408

約数和(自身を除く): 74381580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 17, 18, 21, 26, 28, 34, 36, 39, 42, 43, 51, 52, 63, 68, 78, 84, 86, 91, 102, 117, 119, 126, 129, 153, 156, 169, 172, 182, 204, 221, 234, 238, 252, 258, 273, 301, 306, 338, 357, 364, 387, 442, 468, 476, 507, 516, 546, 559, 602, 612, 663, 676, 714, 731, 774, 819, 884, 903, 1014, 1071, 1092, 1118, 1183, 1204, 1326, 1428, 1462, 1521, 1547, 1548, 1638, 1677, 1806, 1989, 2028, 2142, 2193, 2236, 2366, 2652, 2709, 2873, 2924, 3042, 3094, 3276, 3354, 3549, 3612, 3913, 3978, 4284, 4386, 4641, 4732, 5031, 5117, 5418, 5746, 6084, 6188, 6579, 6708, 7098, 7267, 7826, 7956, 8619, 8772, 9282, 9503, 10062, 10234, 10647, 10836, 11492, 11739, 13158, 13923, 14196, 14534, 15351, 15652, 17238, 18564, 19006, 20111, 20124, 20468, 21294, 21801, 23478, 25857, 26316, 27846, 28509, 29068, 30702, 34476, 35217, 38012, 40222, 42588, 43602, 46053, 46956, 50869, 51714, 55692, 57018, 60333, 61404, 65403, 66521, 70434, 80444, 85527, 87204, 92106, 101738, 103428, 114036, 120666, 123539, 130806, 133042, 140868, 152607, 171054, 180999, 184212, 199563, 203476, 241332, 247078, 261612, 266084, 305214, 342108, 361998, 370617, 399126, 457821, 494156, 598689, 610428, 723996, 741234, 798252, 864773, 915642, 1111851, 1197378, 1482468, 1729546, 1831284, 2223702, 2394756, 2594319, 3459092, 4447404, 5188638, 7782957, 10377276, 15565914, 31131828]

約数ペア:

[(1, 31131828), (2, 15565914), (3, 10377276), (4, 7782957), (6, 5188638), (7, 4447404), (9, 3459092), (12, 2594319), (13, 2394756), (14, 2223702), (17, 1831284), (18, 1729546), (21, 1482468), (26, 1197378), (28, 1111851), (34, 915642), (36, 864773), (39, 798252), (42, 741234), (43, 723996), (51, 610428), (52, 598689), (63, 494156), (68, 457821), (78, 399126), (84, 370617), (86, 361998), (91, 342108), (102, 305214), (117, 266084), (119, 261612), (126, 247078), (129, 241332), (153, 203476), (156, 199563), (169, 184212), (172, 180999), (182, 171054), (204, 152607), (221, 140868), (234, 133042), (238, 130806), (252, 123539), (258, 120666), (273, 114036), (301, 103428), (306, 101738), (338, 92106), (357, 87204), (364, 85527), (387, 80444), (442, 70434), (468, 66521), (476, 65403), (507, 61404), (516, 60333), (546, 57018), (559, 55692), (602, 51714), (612, 50869), (663, 46956), (676, 46053), (714, 43602), (731, 42588), (774, 40222), (819, 38012), (884, 35217), (903, 34476), (1014, 30702), (1071, 29068), (1092, 28509), (1118, 27846), (1183, 26316), (1204, 25857), (1326, 23478), (1428, 21801), (1462, 21294), (1521, 20468), (1547, 20124), (1548, 20111), (1638, 19006), (1677, 18564), (1806, 17238), (1989, 15652), (2028, 15351), (2142, 14534), (2193, 14196), (2236, 13923), (2366, 13158), (2652, 11739), (2709, 11492), (2873, 10836), (2924, 10647), (3042, 10234), (3094, 10062), (3276, 9503), (3354, 9282), (3549, 8772), (3612, 8619), (3913, 7956), (3978, 7826), (4284, 7267), (4386, 7098), (4641, 6708), (4732, 6579), (5031, 6188), (5117, 6084), (5418, 5746)]