21511130

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{14437}}^1$

素因数の和:14593

約数の個数: 16

約数和(自身を含む): 38982600

約数和(自身を除く): 17471470

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 14437, 28874, 72185, 144370, 2151113, 4302226, 10755565, 21511130]

約数ペア:

[(1, 21511130), (2, 10755565), (5, 4302226), (10, 2151113), (149, 144370), (298, 72185), (745, 28874), (1490, 14437)]