21289619

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 23919840

約数和(自身を除く): 2630221

約数列:

[1, 13, 41, 59, 533, 677, 767, 2419, 8801, 27757, 31447, 39943, 360841, 519259, 1637663, 21289619]

約数ペア:

[(1, 21289619), (13, 1637663), (41, 519259), (59, 360841), (533, 39943), (677, 31447), (767, 27757), (2419, 8801)]