21051768

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20399}}^1$

素因数の和:20451

約数の個数: 32

約数和(自身を含む): 53856000

約数和(自身を除く): 32804232

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20399, 40798, 61197, 81596, 122394, 163192, 244788, 489576, 877157, 1754314, 2631471, 3508628, 5262942, 7017256, 10525884, 21051768]

約数ペア:

[(1, 21051768), (2, 10525884), (3, 7017256), (4, 5262942), (6, 3508628), (8, 2631471), (12, 1754314), (24, 877157), (43, 489576), (86, 244788), (129, 163192), (172, 122394), (258, 81596), (344, 61197), (516, 40798), (1032, 20399)]