28389963

素因数分解:

$3^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{1279}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 44359680

約数和(自身を除く): 15969717

約数列:

[1, 3, 7, 21, 49, 147, 151, 453, 1057, 1279, 3171, 3837, 7399, 8953, 22197, 26859, 62671, 188013, 193129, 579387, 1351903, 4055709, 9463321, 28389963]

約数ペア:

[(1, 28389963), (3, 9463321), (7, 4055709), (21, 1351903), (49, 579387), (147, 193129), (151, 188013), (453, 62671), (1057, 26859), (1279, 22197), (3171, 8953), (3837, 7399)]