20443748

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 40567296

約数和(自身を除く): 20123548

約数列:

[1, 2, 4, 13, 26, 41, 43, 52, 82, 86, 164, 172, 223, 446, 533, 559, 892, 1066, 1118, 1763, 2132, 2236, 2899, 3526, 5798, 7052, 9143, 9589, 11596, 18286, 19178, 22919, 36572, 38356, 45838, 91676, 118859, 124657, 237718, 249314, 393149, 475436, 498628, 786298, 1572596, 5110937, 10221874, 20443748]

約数ペア:

[(1, 20443748), (2, 10221874), (4, 5110937), (13, 1572596), (26, 786298), (41, 498628), (43, 475436), (52, 393149), (82, 249314), (86, 237718), (164, 124657), (172, 118859), (223, 91676), (446, 45838), (533, 38356), (559, 36572), (892, 22919), (1066, 19178), (1118, 18286), (1763, 11596), (2132, 9589), (2236, 9143), (2899, 7052), (3526, 5798)]