21024025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{859}}^1$

素因数の和:969

約数の個数: 24

約数和(自身を含む): 28792800

約数和(自身を除く): 7768775

約数列:

[1, 5, 11, 25, 55, 89, 275, 445, 859, 979, 2225, 4295, 4895, 9449, 21475, 24475, 47245, 76451, 236225, 382255, 840961, 1911275, 4204805, 21024025]

約数ペア:

[(1, 21024025), (5, 4204805), (11, 1911275), (25, 840961), (55, 382255), (89, 236225), (275, 76451), (445, 47245), (859, 24475), (979, 21475), (2225, 9449), (4295, 4895)]