21107523

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3797}}^1$

素因数の和:3926

約数の個数: 16

約数和(自身を含む): 30080160

約数和(自身を除く): 8972637

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3797, 5559, 11391, 64549, 193647, 413873, 1241619, 7035841, 21107523]

約数ペア:

[(1, 21107523), (3, 7035841), (17, 1241619), (51, 413873), (109, 193647), (327, 64549), (1853, 11391), (3797, 5559)]