21125403

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1753}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 33199712

約数和(自身を除く): 12074309

約数列:

[1, 3, 9, 13, 39, 103, 117, 309, 927, 1339, 1753, 4017, 5259, 12051, 15777, 22789, 68367, 180559, 205101, 541677, 1625031, 2347267, 7041801, 21125403]

約数ペア:

[(1, 21125403), (3, 7041801), (9, 2347267), (13, 1625031), (39, 541677), (103, 205101), (117, 180559), (309, 68367), (927, 22789), (1339, 15777), (1753, 12051), (4017, 5259)]