21056590

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{34519}}^1$

素因数の和:34587

約数の個数: 16

約数和(自身を含む): 38524320

約数和(自身を除く): 17467730

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 34519, 69038, 172595, 345190, 2105659, 4211318, 10528295, 21056590]

約数ペア:

[(1, 21056590), (2, 10528295), (5, 4211318), (10, 2105659), (61, 345190), (122, 172595), (305, 69038), (610, 34519)]