20429682

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 128

約数和(自身を含む): 55738368

約数和(自身を除く): 35308686

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 21, 26, 31, 34, 39, 42, 51, 62, 71, 78, 91, 93, 102, 119, 142, 182, 186, 213, 217, 221, 238, 273, 357, 403, 426, 434, 442, 497, 527, 546, 651, 663, 714, 806, 923, 994, 1054, 1207, 1209, 1302, 1326, 1491, 1547, 1581, 1846, 2201, 2414, 2418, 2769, 2821, 2982, 3094, 3162, 3621, 3689, 4402, 4641, 5538, 5642, 6461, 6603, 6851, 7242, 7378, 8449, 8463, 9282, 11067, 12922, 13206, 13702, 15407, 15691, 16898, 16926, 19383, 20553, 22134, 25347, 28613, 30814, 31382, 37417, 38766, 41106, 46221, 47073, 47957, 50694, 57226, 74834, 85839, 92442, 94146, 95914, 109837, 112251, 143871, 171678, 200291, 219674, 224502, 261919, 287742, 329511, 400582, 486421, 523838, 600873, 659022, 785757, 972842, 1201746, 1459263, 1571514, 2918526, 3404947, 6809894, 10214841, 20429682]

約数ペア:

[(1, 20429682), (2, 10214841), (3, 6809894), (6, 3404947), (7, 2918526), (13, 1571514), (14, 1459263), (17, 1201746), (21, 972842), (26, 785757), (31, 659022), (34, 600873), (39, 523838), (42, 486421), (51, 400582), (62, 329511), (71, 287742), (78, 261919), (91, 224502), (93, 219674), (102, 200291), (119, 171678), (142, 143871), (182, 112251), (186, 109837), (213, 95914), (217, 94146), (221, 92442), (238, 85839), (273, 74834), (357, 57226), (403, 50694), (426, 47957), (434, 47073), (442, 46221), (497, 41106), (527, 38766), (546, 37417), (651, 31382), (663, 30814), (714, 28613), (806, 25347), (923, 22134), (994, 20553), (1054, 19383), (1207, 16926), (1209, 16898), (1302, 15691), (1326, 15407), (1491, 13702), (1547, 13206), (1581, 12922), (1846, 11067), (2201, 9282), (2414, 8463), (2418, 8449), (2769, 7378), (2821, 7242), (2982, 6851), (3094, 6603), (3162, 6461), (3621, 5642), (3689, 5538), (4402, 4641)]