21013384

素因数分解:

$2^3\times 7^1\times {\mathrm{353}}^1\times {\mathrm{1063}}^1$

素因数の和:1429

約数の個数: 32

約数和(自身を含む): 45198720

約数和(自身を除く): 24185336

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 353, 706, 1063, 1412, 2126, 2471, 2824, 4252, 4942, 7441, 8504, 9884, 14882, 19768, 29764, 59528, 375239, 750478, 1500956, 2626673, 3001912, 5253346, 10506692, 21013384]

約数ペア:

[(1, 21013384), (2, 10506692), (4, 5253346), (7, 3001912), (8, 2626673), (14, 1500956), (28, 750478), (56, 375239), (353, 59528), (706, 29764), (1063, 19768), (1412, 14882), (2126, 9884), (2471, 8504), (2824, 7441), (4252, 4942)]