18945433

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{887}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 21482496

約数和(自身を除く): 2537063

約数列:

[1, 13, 31, 53, 403, 689, 887, 1643, 11531, 21359, 27497, 47011, 357461, 611143, 1457341, 18945433]

約数ペア:

[(1, 18945433), (13, 1457341), (31, 611143), (53, 357461), (403, 47011), (689, 27497), (887, 21359), (1643, 11531)]