21313912

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{19447}}^1$

素因数の和:19590

約数の個数: 16

約数和(自身を含む): 40257360

約数和(自身を除く): 18943448

約数列:

[1, 2, 4, 8, 137, 274, 548, 1096, 19447, 38894, 77788, 155576, 2664239, 5328478, 10656956, 21313912]

約数ペア:

[(1, 21313912), (2, 10656956), (4, 5328478), (8, 2664239), (137, 155576), (274, 77788), (548, 38894), (1096, 19447)]