21563711

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:530

約数の個数: 16

約数和(自身を含む): 24105984

約数和(自身を除く): 2542273

約数列:

[1, 13, 37, 127, 353, 481, 1651, 4589, 4699, 13061, 44831, 61087, 169793, 582803, 1658747, 21563711]

約数ペア:

[(1, 21563711), (13, 1658747), (37, 582803), (127, 169793), (353, 61087), (481, 44831), (1651, 13061), (4589, 4699)]