20266617

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11666823

約数列:

[1, 3, 7, 21, 53, 131, 139, 159, 371, 393, 417, 917, 973, 1113, 2751, 2919, 6943, 7367, 18209, 20829, 22101, 48601, 51569, 54627, 127463, 145803, 154707, 382389, 965077, 2895231, 6755539, 20266617]

約数ペア:

[(1, 20266617), (3, 6755539), (7, 2895231), (21, 965077), (53, 382389), (131, 154707), (139, 145803), (159, 127463), (371, 54627), (393, 51569), (417, 48601), (917, 22101), (973, 20829), (1113, 18209), (2751, 7367), (2919, 6943)]