28126511

素因数分解:

$7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{211}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 32766720

約数和(自身を除く): 4640209

約数列:

[1, 7, 137, 139, 211, 959, 973, 1477, 19043, 28907, 29329, 133301, 202349, 205303, 4018073, 28126511]

約数ペア:

[(1, 28126511), (7, 4018073), (137, 205303), (139, 202349), (211, 133301), (959, 29329), (973, 28907), (1477, 19043)]