31528809

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1091}}^1$

素因数の和:1142

約数の個数: 36

約数和(自身を含む): 51957360

約数和(自身を除く): 20428551

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 507, 741, 1091, 1521, 2223, 3211, 3273, 9633, 9819, 14183, 20729, 28899, 42549, 62187, 127647, 184379, 186561, 269477, 553137, 808431, 1659411, 2425293, 3503201, 10509603, 31528809]

約数ペア:

[(1, 31528809), (3, 10509603), (9, 3503201), (13, 2425293), (19, 1659411), (39, 808431), (57, 553137), (117, 269477), (169, 186561), (171, 184379), (247, 127647), (507, 62187), (741, 42549), (1091, 28899), (1521, 20729), (2223, 14183), (3211, 9819), (3273, 9633)]