221355905

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{8431}}^1$

素因数の和:8584

約数の個数: 16

約数和(自身を含む): 273196800

約数和(自身を除く): 51840895

約数列:

[1, 5, 59, 89, 295, 445, 5251, 8431, 26255, 42155, 497429, 750359, 2487145, 3751795, 44271181, 221355905]

約数ペア:

[(1, 221355905), (5, 44271181), (59, 3751795), (89, 2487145), (295, 750359), (445, 497429), (5251, 42155), (8431, 26255)]