21818220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4603}}^1$

素因数の和:4694

約数の個数: 48

約数和(自身を含む): 61877760

約数和(自身を除く): 40059540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4603, 4740, 9206, 13809, 18412, 23015, 27618, 46030, 55236, 69045, 92060, 138090, 276180, 363637, 727274, 1090911, 1454548, 1818185, 2181822, 3636370, 4363644, 5454555, 7272740, 10909110, 21818220]

約数ペア:

[(1, 21818220), (2, 10909110), (3, 7272740), (4, 5454555), (5, 4363644), (6, 3636370), (10, 2181822), (12, 1818185), (15, 1454548), (20, 1090911), (30, 727274), (60, 363637), (79, 276180), (158, 138090), (237, 92060), (316, 69045), (395, 55236), (474, 46030), (790, 27618), (948, 23015), (1185, 18412), (1580, 13809), (2370, 9206), (4603, 4740)]