21000201665

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{3637}}^1\times {\mathrm{39821}}^1$

素因数の和:43492

約数の個数: 16

約数和(自身を含む): 26077038480

約数和(自身を除く): 5076836815

約数列:

[1, 5, 29, 145, 3637, 18185, 39821, 105473, 199105, 527365, 1154809, 5774045, 144828977, 724144885, 4200040333, 21000201665]

約数ペア:

[(1, 21000201665), (5, 4200040333), (29, 724144885), (145, 144828977), (3637, 5774045), (18185, 1154809), (39821, 527365), (105473, 199105)]