21922901

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 32

約数和(自身を含む): 29842176

約数和(自身を除く): 7919275

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 181, 847, 1001, 1267, 1331, 1573, 1991, 2353, 9317, 11011, 13937, 16471, 17303, 21901, 25883, 121121, 153307, 181181, 240911, 284713, 1686377, 1992991, 3131843, 21922901]

約数ペア:

[(1, 21922901), (7, 3131843), (11, 1992991), (13, 1686377), (77, 284713), (91, 240911), (121, 181181), (143, 153307), (181, 121121), (847, 25883), (1001, 21901), (1267, 17303), (1331, 16471), (1573, 13937), (1991, 11011), (2353, 9317)]