20552679

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2347}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 34186880

約数和(自身を除く): 13634201

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2347, 2919, 7041, 8757, 16429, 21123, 49287, 147861, 326233, 978699, 2283631, 2936097, 6850893, 20552679]

約数ペア:

[(1, 20552679), (3, 6850893), (7, 2936097), (9, 2283631), (21, 978699), (63, 326233), (139, 147861), (417, 49287), (973, 21123), (1251, 16429), (2347, 8757), (2919, 7041)]