21398384

素因数分解:

$2^4\times 7^1\times {\mathrm{191057}}^1$

素因数の和:191072

約数の個数: 20

約数和(自身を含む): 47382384

約数和(自身を除く): 25984000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191057, 382114, 764228, 1337399, 1528456, 2674798, 3056912, 5349596, 10699192, 21398384]

約数ペア:

[(1, 21398384), (2, 10699192), (4, 5349596), (7, 3056912), (8, 2674798), (14, 1528456), (16, 1337399), (28, 764228), (56, 382114), (112, 191057)]