21165273780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50393509}}^1$

素因数の和:50393528

約数の個数: 48

約数和(自身を含む): 67728877440

約数和(自身を除く): 46563603660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50393509, 100787018, 151180527, 201574036, 251967545, 302361054, 352754563, 503935090, 604722108, 705509126, 755902635, 1007870180, 1058263689, 1411018252, 1511805270, 1763772815, 2116527378, 3023610540, 3527545630, 4233054756, 5291318445, 7055091260, 10582636890, 21165273780]

約数ペア:

[(1, 21165273780), (2, 10582636890), (3, 7055091260), (4, 5291318445), (5, 4233054756), (6, 3527545630), (7, 3023610540), (10, 2116527378), (12, 1763772815), (14, 1511805270), (15, 1411018252), (20, 1058263689), (21, 1007870180), (28, 755902635), (30, 705509126), (35, 604722108), (42, 503935090), (60, 352754563), (70, 302361054), (84, 251967545), (105, 201574036), (140, 151180527), (210, 100787018), (420, 50393509)]