21949629

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{4049}}^1$

素因数の和:4204

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 9802371

約数列:

[1, 3, 13, 39, 139, 417, 1807, 4049, 5421, 12147, 52637, 157911, 562811, 1688433, 7316543, 21949629]

約数ペア:

[(1, 21949629), (3, 7316543), (13, 1688433), (39, 562811), (139, 157911), (417, 52637), (1807, 12147), (4049, 5421)]