20915824

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42169}}^1$

素因数の和:42208

約数の個数: 20

約数和(自身を含む): 41832640

約数和(自身を除く): 20916816

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42169, 84338, 168676, 337352, 674704, 1307239, 2614478, 5228956, 10457912, 20915824]

約数ペア:

[(1, 20915824), (2, 10457912), (4, 5228956), (8, 2614478), (16, 1307239), (31, 674704), (62, 337352), (124, 168676), (248, 84338), (496, 42169)]