20372391

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6449}}^1$

素因数の和:6477

約数の個数: 24

約数和(自身を含む): 32869200

約数和(自身を除く): 12496809

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6449, 19347, 58041, 83837, 174123, 251511, 522369, 754533, 1567107, 2263599, 6790797, 20372391]

約数ペア:

[(1, 20372391), (3, 6790797), (9, 2263599), (13, 1567107), (27, 754533), (39, 522369), (81, 251511), (117, 174123), (243, 83837), (351, 58041), (1053, 19347), (3159, 6449)]