20687098

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{311}}^1\times {\mathrm{421}}^1$

素因数の和:813

約数の個数: 16

約数和(自身を含む): 31599360

約数和(自身を除く): 10912262

約数列:

[1, 2, 79, 158, 311, 421, 622, 842, 24569, 33259, 49138, 66518, 130931, 261862, 10343549, 20687098]

約数ペア:

[(1, 20687098), (2, 10343549), (79, 261862), (158, 130931), (311, 66518), (421, 49138), (622, 33259), (842, 24569)]