21909695759

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1\times {\mathrm{207433}}^1$

素因数の和:207710

約数の個数: 16

約数和(自身を含む): 25489489920

約数和(自身を除く): 3579794161

約数列:

[1, 7, 79, 191, 553, 1337, 15089, 105623, 207433, 1452031, 16387207, 39619703, 114710449, 277337921, 3129956537, 21909695759]

約数ペア:

[(1, 21909695759), (7, 3129956537), (79, 277337921), (191, 114710449), (553, 39619703), (1337, 16387207), (15089, 1452031), (105623, 207433)]