20576577

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^2\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 31958976

約数和(自身を除く): 11382399

約数列:

[1, 3, 7, 21, 79, 157, 237, 471, 553, 1099, 1659, 3297, 6241, 12403, 18723, 37209, 43687, 86821, 131061, 260463, 979837, 2939511, 6858859, 20576577]

約数ペア:

[(1, 20576577), (3, 6858859), (7, 2939511), (21, 979837), (79, 260463), (157, 131061), (237, 86821), (471, 43687), (553, 37209), (1099, 18723), (1659, 12403), (3297, 6241)]