20123378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{4789}}^1$

素因数の和:4993

約数の個数: 16

約数和(自身を含む): 33108480

約数和(自身を除く): 12985102

約数列:

[1, 2, 11, 22, 191, 382, 2101, 4202, 4789, 9578, 52679, 105358, 914699, 1829398, 10061689, 20123378]

約数ペア:

[(1, 20123378), (2, 10061689), (11, 1829398), (22, 914699), (191, 105358), (382, 52679), (2101, 9578), (4202, 4789)]