21287630798

素因数分解:

$2^1\times 7^1\times {\mathrm{4409}}^1\times {\mathrm{344873}}^1$

素因数の和:349291

約数の個数: 16

約数和(自身を含む): 36501464160

約数和(自身を除く): 15213833362

約数列:

[1, 2, 7, 14, 4409, 8818, 30863, 61726, 344873, 689746, 2414111, 4828222, 1520545057, 3041090114, 10643815399, 21287630798]

約数ペア:

[(1, 21287630798), (2, 10643815399), (7, 3041090114), (14, 1520545057), (4409, 4828222), (8818, 2414111), (30863, 689746), (61726, 344873)]