21807617

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 25138512

約数和(自身を除く): 3330895

約数列:

[1, 13, 17, 101, 221, 977, 1313, 1717, 12701, 16609, 22321, 98677, 215917, 1282801, 1677509, 21807617]

約数ペア:

[(1, 21807617), (13, 1677509), (17, 1282801), (101, 215917), (221, 98677), (977, 22321), (1313, 16609), (1717, 12701)]