21663235

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 29091888

約数和(自身を除く): 7428653

約数列:

[1, 5, 11, 55, 61, 121, 305, 587, 605, 671, 2935, 3355, 6457, 7381, 32285, 35807, 36905, 71027, 179035, 355135, 393877, 1969385, 4332647, 21663235]

約数ペア:

[(1, 21663235), (5, 4332647), (11, 1969385), (55, 393877), (61, 355135), (121, 179035), (305, 71027), (587, 36905), (605, 35807), (671, 32285), (2935, 7381), (3355, 6457)]