19743205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{647}}^1$

素因数の和:1028

約数の個数: 16

約数和(自身を含む): 25194240

約数和(自身を除く): 5451035

約数列:

[1, 5, 17, 85, 359, 647, 1795, 3235, 6103, 10999, 30515, 54995, 232273, 1161365, 3948641, 19743205]

約数ペア:

[(1, 19743205), (5, 3948641), (17, 1161365), (85, 232273), (359, 54995), (647, 30515), (1795, 10999), (3235, 6103)]