21685345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{941}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 28486080

約数和(自身を除く): 6800735

約数列:

[1, 5, 11, 55, 419, 941, 2095, 4609, 4705, 10351, 23045, 51755, 394279, 1971395, 4337069, 21685345]

約数ペア:

[(1, 21685345), (5, 4337069), (11, 1971395), (55, 394279), (419, 51755), (941, 23045), (2095, 10351), (4609, 4705)]