20408873194

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{550609}}^1$

素因数の和:551085

約数の個数: 16

約数和(自身を含む): 31397984640

約数和(自身を除く): 10989111446

約数列:

[1, 2, 43, 86, 431, 862, 18533, 37066, 550609, 1101218, 23676187, 47352374, 237312479, 474624958, 10204436597, 20408873194]

約数ペア:

[(1, 20408873194), (2, 10204436597), (43, 474624958), (86, 237312479), (431, 47352374), (862, 23676187), (18533, 1101218), (37066, 550609)]