20781994217

素因数分解:

${\mathrm{89}}^1\times {\mathrm{499}}^1\times {\mathrm{577}}^1\times {\mathrm{811}}^1$

素因数の和:1976

約数の個数: 16

約数和(自身を含む): 21120120000

約数和(自身を除く): 338125783

約数列:

[1, 89, 499, 577, 811, 44411, 51353, 72179, 287923, 404689, 467947, 25625147, 36017321, 41647283, 233505553, 20781994217]

約数ペア:

[(1, 20781994217), (89, 233505553), (499, 41647283), (577, 36017321), (811, 25625147), (44411, 467947), (51353, 404689), (72179, 287923)]