21000551039

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1\times {\mathrm{857}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 23247544320

約数和(自身を除く): 2246993281

約数列:

[1, 13, 71, 139, 191, 857, 923, 1807, 2483, 9869, 11141, 13561, 26549, 60847, 119123, 128297, 163687, 176293, 345137, 791011, 1548599, 1884979, 2127931, 8457733, 11621777, 22752493, 24504727, 109950529, 151083101, 295782409, 1615427003, 21000551039]

約数ペア:

[(1, 21000551039), (13, 1615427003), (71, 295782409), (139, 151083101), (191, 109950529), (857, 24504727), (923, 22752493), (1807, 11621777), (2483, 8457733), (9869, 2127931), (11141, 1884979), (13561, 1548599), (26549, 791011), (60847, 345137), (119123, 176293), (128297, 163687)]