21377206

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{1279}}^1$

素因数の和:1479

約数の個数: 16

約数和(自身を含む): 32855040

約数和(自身を除く): 11477834

約数列:

[1, 2, 61, 122, 137, 274, 1279, 2558, 8357, 16714, 78019, 156038, 175223, 350446, 10688603, 21377206]

約数ペア:

[(1, 21377206), (2, 10688603), (61, 350446), (122, 175223), (137, 156038), (274, 78019), (1279, 16714), (2558, 8357)]