21679665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10867}}^1$

素因数の和:10901

約数の個数: 32

約数和(自身を含む): 41733120

約数和(自身を除く): 20053455

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10867, 32601, 54335, 76069, 163005, 206473, 228207, 380345, 619419, 1032365, 1141035, 1445311, 3097095, 4335933, 7226555, 21679665]

約数ペア:

[(1, 21679665), (3, 7226555), (5, 4335933), (7, 3097095), (15, 1445311), (19, 1141035), (21, 1032365), (35, 619419), (57, 380345), (95, 228207), (105, 206473), (133, 163005), (285, 76069), (399, 54335), (665, 32601), (1995, 10867)]