21909758975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{2371}}^1\times {\mathrm{28433}}^1$

素因数の和:30827

約数の個数: 24

約数和(自身を含む): 29271324432

約数和(自身を除く): 7361565457

約数列:

[1, 5, 13, 25, 65, 325, 2371, 11855, 28433, 30823, 59275, 142165, 154115, 369629, 710825, 770575, 1848145, 9240725, 67414643, 337073215, 876390359, 1685366075, 4381951795, 21909758975]

約数ペア:

[(1, 21909758975), (5, 4381951795), (13, 1685366075), (25, 876390359), (65, 337073215), (325, 67414643), (2371, 9240725), (11855, 1848145), (28433, 770575), (30823, 710825), (59275, 369629), (142165, 154115)]