21060455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{17053}}^1$

素因数の和:17090

約数の個数: 16

約数和(自身を含む): 28650720

約数和(自身を除く): 7590265

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 17053, 85265, 221689, 324007, 1108445, 1620035, 4212091, 21060455]

約数ペア:

[(1, 21060455), (5, 4212091), (13, 1620035), (19, 1108445), (65, 324007), (95, 221689), (247, 85265), (1235, 17053)]