21377384

素因数分解:

$2^3\times 7^1\times {\mathrm{381739}}^1$

素因数の和:381752

約数の個数: 16

約数和(自身を含む): 45808800

約数和(自身を除く): 24431416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 381739, 763478, 1526956, 2672173, 3053912, 5344346, 10688692, 21377384]

約数ペア:

[(1, 21377384), (2, 10688692), (4, 5344346), (7, 3053912), (8, 2672173), (14, 1526956), (28, 763478), (56, 381739)]