21836619

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20389}}^1$

素因数の和:20419

約数の個数: 24

約数和(自身を含む): 38170080

約数和(自身を除く): 16333461

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20389, 61167, 142723, 183501, 346613, 428169, 1039839, 1284507, 2426291, 3119517, 7278873, 21836619]

約数ペア:

[(1, 21836619), (3, 7278873), (7, 3119517), (9, 2426291), (17, 1284507), (21, 1039839), (51, 428169), (63, 346613), (119, 183501), (153, 142723), (357, 61167), (1071, 20389)]