21892585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{457}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 31393152

約数和(自身を除く): 9500567

約数列:

[1, 5, 11, 13, 55, 65, 67, 143, 335, 457, 715, 737, 871, 2285, 3685, 4355, 5027, 5941, 9581, 25135, 29705, 30619, 47905, 65351, 153095, 326755, 336809, 398047, 1684045, 1990235, 4378517, 21892585]

約数ペア:

[(1, 21892585), (5, 4378517), (11, 1990235), (13, 1684045), (55, 398047), (65, 336809), (67, 326755), (143, 153095), (335, 65351), (457, 47905), (715, 30619), (737, 29705), (871, 25135), (2285, 9581), (3685, 5941), (4355, 5027)]