51139907

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:483

約数の個数: 24

約数和(自身を含む): 63947520

約数和(自身を除く): 12807613

約数列:

[1, 7, 13, 91, 139, 169, 311, 973, 1183, 1807, 2177, 4043, 12649, 23491, 28301, 43229, 52559, 164437, 302603, 367913, 561977, 3933839, 7305701, 51139907]

約数ペア:

[(1, 51139907), (7, 7305701), (13, 3933839), (91, 561977), (139, 367913), (169, 302603), (311, 164437), (973, 52559), (1183, 43229), (1807, 28301), (2177, 23491), (4043, 12649)]