21719230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167071}}^1$

素因数の和:167091

約数の個数: 16

約数和(自身を含む): 42102144

約数和(自身を除く): 20382914

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167071, 334142, 835355, 1670710, 2171923, 4343846, 10859615, 21719230]

約数ペア:

[(1, 21719230), (2, 10859615), (5, 4343846), (10, 2171923), (13, 1670710), (26, 835355), (65, 334142), (130, 167071)]