2507831221

素因数分解:

$7^2\times {\mathrm{79}}^1\times {\mathrm{647851}}^1$

素因数の和:647944

約数の個数: 12

約数和(自身を含む): 2954205120

約数和(自身を除く): 446373899

約数列:

[1, 7, 49, 79, 553, 3871, 647851, 4534957, 31744699, 51180229, 358261603, 2507831221]

約数ペア:

[(1, 2507831221), (7, 358261603), (49, 51180229), (79, 31744699), (553, 4534957), (3871, 647851)]