21091577

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5023}}^1$

素因数の和:5072

約数の個数: 16

約数和(自身を含む): 25320960

約数和(自身を除く): 4229383

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 5023, 65299, 85391, 95437, 1110083, 1240681, 1622429, 21091577]

約数ペア:

[(1, 21091577), (13, 1622429), (17, 1240681), (19, 1110083), (221, 95437), (247, 85391), (323, 65299), (4199, 5023)]