21897390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{729913}}^1$

素因数の和:729923

約数の個数: 16

約数和(自身を含む): 52553808

約数和(自身を除く): 30656418

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 729913, 1459826, 2189739, 3649565, 4379478, 7299130, 10948695, 21897390]

約数ペア:

[(1, 21897390), (2, 10948695), (3, 7299130), (5, 4379478), (6, 3649565), (10, 2189739), (15, 1459826), (30, 729913)]