18974735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4357}}^1$

素因数の和:4442

約数の個数: 16

約数和(自身を含む): 24892896

約数和(自身を除く): 5918161

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4357, 21785, 56641, 283205, 291919, 1459595, 3794947, 18974735]

約数ペア:

[(1, 18974735), (5, 3794947), (13, 1459595), (65, 291919), (67, 283205), (335, 56641), (871, 21785), (4355, 4357)]