21416005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19381}}^1$

素因数の和:19416

約数の個数: 16

約数和(自身を含む): 29305584

約数和(自身を除く): 7889579

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19381, 96905, 251953, 329477, 1259765, 1647385, 4283201, 21416005]

約数ペア:

[(1, 21416005), (5, 4283201), (13, 1647385), (17, 1259765), (65, 329477), (85, 251953), (221, 96905), (1105, 19381)]