21904890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{104309}}^1$

素因数の和:104326

約数の個数: 32

約数和(自身を含む): 60082560

約数和(自身を除く): 38177670

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 104309, 208618, 312927, 521545, 625854, 730163, 1043090, 1460326, 1564635, 2190489, 3129270, 3650815, 4380978, 7301630, 10952445, 21904890]

約数ペア:

[(1, 21904890), (2, 10952445), (3, 7301630), (5, 4380978), (6, 3650815), (7, 3129270), (10, 2190489), (14, 1564635), (15, 1460326), (21, 1043090), (30, 730163), (35, 625854), (42, 521545), (70, 312927), (105, 208618), (210, 104309)]