20215657943

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{644447}}^1$

素因数の和:644606

約数の個数: 16

約数和(自身を含む): 23097016320

約数和(自身を除く): 2881358377

約数列:

[1, 13, 19, 127, 247, 1651, 2413, 31369, 644447, 8377811, 12244493, 81844769, 159178409, 1063981997, 1555050611, 20215657943]

約数ペア:

[(1, 20215657943), (13, 1555050611), (19, 1063981997), (127, 159178409), (247, 81844769), (1651, 12244493), (2413, 8377811), (31369, 644447)]