20105813

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{2027}}^1$

素因数の和:2156

約数の個数: 16

約数和(自身を含む): 24984960

約数和(自身を除く): 4879147

約数列:

[1, 7, 13, 91, 109, 763, 1417, 2027, 9919, 14189, 26351, 184457, 220943, 1546601, 2872259, 20105813]

約数ペア:

[(1, 20105813), (7, 2872259), (13, 1546601), (91, 220943), (109, 184457), (763, 26351), (1417, 14189), (2027, 9919)]