18514964

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:540

約数の個数: 36

約数和(自身を含む): 35739900

約数和(自身を除く): 17224936

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 169, 244, 338, 449, 676, 793, 898, 1586, 1796, 3172, 5837, 10309, 11674, 20618, 23348, 27389, 41236, 54778, 75881, 109556, 151762, 303524, 356057, 712114, 1424228, 4628741, 9257482, 18514964]

約数ペア:

[(1, 18514964), (2, 9257482), (4, 4628741), (13, 1424228), (26, 712114), (52, 356057), (61, 303524), (122, 151762), (169, 109556), (244, 75881), (338, 54778), (449, 41236), (676, 27389), (793, 23348), (898, 20618), (1586, 11674), (1796, 10309), (3172, 5837)]