20123554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{1427}}^1$

素因数の和:2081

約数の個数: 16

約数和(自身を含む): 33003936

約数和(自身を除く): 12880382

約数列:

[1, 2, 11, 22, 641, 1282, 1427, 2854, 7051, 14102, 15697, 31394, 914707, 1829414, 10061777, 20123554]

約数ペア:

[(1, 20123554), (2, 10061777), (11, 1829414), (22, 914707), (641, 31394), (1282, 15697), (1427, 14102), (2854, 7051)]