20458711

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{587}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 25288704

約数和(自身を除く): 4829993

約数列:

[1, 7, 13, 91, 383, 587, 2681, 4109, 4979, 7631, 34853, 53417, 224821, 1573747, 2922673, 20458711]

約数ペア:

[(1, 20458711), (7, 2922673), (13, 1573747), (91, 224821), (383, 53417), (587, 34853), (2681, 7631), (4109, 4979)]