21379386

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72719}}^1$

素因数の和:72738

約数の個数: 24

約数和(自身を含む): 49740480

約数和(自身を除く): 28361094

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72719, 145438, 218157, 436314, 509033, 1018066, 1527099, 3054198, 3563231, 7126462, 10689693, 21379386]

約数ペア:

[(1, 21379386), (2, 10689693), (3, 7126462), (6, 3563231), (7, 3054198), (14, 1527099), (21, 1018066), (42, 509033), (49, 436314), (98, 218157), (147, 145438), (294, 72719)]