20217535

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5099}}^1$

素因数の和:5178

約数の個数: 16

約数和(自身を含む): 26560800

約数和(自身を除く): 6343265

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 5099, 25495, 66287, 311039, 331435, 1555195, 4043507, 20217535]

約数ペア:

[(1, 20217535), (5, 4043507), (13, 1555195), (61, 331435), (65, 311039), (305, 66287), (793, 25495), (3965, 5099)]