21087612

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 144

約数和(自身を含む): 67634112

約数和(自身を除く): 46546500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 41, 42, 52, 63, 78, 82, 84, 91, 117, 123, 126, 156, 157, 164, 182, 234, 246, 252, 273, 287, 314, 364, 369, 468, 471, 492, 533, 546, 574, 628, 738, 819, 861, 942, 1066, 1092, 1099, 1148, 1413, 1476, 1599, 1638, 1722, 1884, 2041, 2132, 2198, 2583, 2826, 3198, 3276, 3297, 3444, 3731, 4082, 4396, 4797, 5166, 5652, 6123, 6396, 6437, 6594, 7462, 8164, 9594, 9891, 10332, 11193, 12246, 12874, 13188, 14287, 14924, 18369, 19188, 19311, 19782, 22386, 24492, 25748, 28574, 33579, 36738, 38622, 39564, 42861, 44772, 45059, 57148, 57933, 67158, 73476, 77244, 83681, 85722, 90118, 115866, 128583, 134316, 135177, 167362, 171444, 180236, 231732, 251043, 257166, 270354, 334724, 405531, 502086, 514332, 540708, 585767, 753129, 811062, 1004172, 1171534, 1506258, 1622124, 1757301, 2343068, 3012516, 3514602, 5271903, 7029204, 10543806, 21087612]

約数ペア:

[(1, 21087612), (2, 10543806), (3, 7029204), (4, 5271903), (6, 3514602), (7, 3012516), (9, 2343068), (12, 1757301), (13, 1622124), (14, 1506258), (18, 1171534), (21, 1004172), (26, 811062), (28, 753129), (36, 585767), (39, 540708), (41, 514332), (42, 502086), (52, 405531), (63, 334724), (78, 270354), (82, 257166), (84, 251043), (91, 231732), (117, 180236), (123, 171444), (126, 167362), (156, 135177), (157, 134316), (164, 128583), (182, 115866), (234, 90118), (246, 85722), (252, 83681), (273, 77244), (287, 73476), (314, 67158), (364, 57933), (369, 57148), (468, 45059), (471, 44772), (492, 42861), (533, 39564), (546, 38622), (574, 36738), (628, 33579), (738, 28574), (819, 25748), (861, 24492), (942, 22386), (1066, 19782), (1092, 19311), (1099, 19188), (1148, 18369), (1413, 14924), (1476, 14287), (1599, 13188), (1638, 12874), (1722, 12246), (1884, 11193), (2041, 10332), (2132, 9891), (2198, 9594), (2583, 8164), (2826, 7462), (3198, 6594), (3276, 6437), (3297, 6396), (3444, 6123), (3731, 5652), (4082, 5166), (4396, 4797)]