18768645

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{19861}}^1$

素因数の和:19882

約数の個数: 32

約数和(自身を含む): 38135040

約数和(自身を除く): 19366395

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 19861, 59583, 99305, 139027, 178749, 297915, 417081, 536247, 695135, 893745, 1251243, 2085405, 2681235, 3753729, 6256215, 18768645]

約数ペア:

[(1, 18768645), (3, 6256215), (5, 3753729), (7, 2681235), (9, 2085405), (15, 1251243), (21, 893745), (27, 695135), (35, 536247), (45, 417081), (63, 297915), (105, 178749), (135, 139027), (189, 99305), (315, 59583), (945, 19861)]