18886764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 48780480

約数和(自身を除く): 29893716

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 139, 156, 169, 201, 268, 278, 338, 402, 417, 507, 556, 676, 804, 834, 871, 1014, 1668, 1742, 1807, 2028, 2613, 3484, 3614, 5226, 5421, 7228, 9313, 10452, 10842, 11323, 18626, 21684, 22646, 23491, 27939, 33969, 37252, 45292, 46982, 55878, 67938, 70473, 93964, 111756, 121069, 135876, 140946, 242138, 281892, 363207, 484276, 726414, 1452828, 1573897, 3147794, 4721691, 6295588, 9443382, 18886764]

約数ペア:

[(1, 18886764), (2, 9443382), (3, 6295588), (4, 4721691), (6, 3147794), (12, 1573897), (13, 1452828), (26, 726414), (39, 484276), (52, 363207), (67, 281892), (78, 242138), (134, 140946), (139, 135876), (156, 121069), (169, 111756), (201, 93964), (268, 70473), (278, 67938), (338, 55878), (402, 46982), (417, 45292), (507, 37252), (556, 33969), (676, 27939), (804, 23491), (834, 22646), (871, 21684), (1014, 18626), (1668, 11323), (1742, 10842), (1807, 10452), (2028, 9313), (2613, 7228), (3484, 5421), (3614, 5226)]