21205330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{479}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 19229870

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 233, 466, 479, 958, 1165, 2330, 2395, 4427, 4790, 8854, 9101, 18202, 22135, 44270, 45505, 91010, 111607, 223214, 558035, 1116070, 2120533, 4241066, 10602665, 21205330]

約数ペア:

[(1, 21205330), (2, 10602665), (5, 4241066), (10, 2120533), (19, 1116070), (38, 558035), (95, 223214), (190, 111607), (233, 91010), (466, 45505), (479, 44270), (958, 22135), (1165, 18202), (2330, 9101), (2395, 8854), (4427, 4790)]