21358035

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27919}}^1$

素因数の和:27947

約数の個数: 24

約数和(自身を含む): 39199680

約数和(自身を除く): 17841645

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 27919, 83757, 139595, 251271, 418785, 474623, 1256355, 1423869, 2373115, 4271607, 7119345, 21358035]

約数ペア:

[(1, 21358035), (3, 7119345), (5, 4271607), (9, 2373115), (15, 1423869), (17, 1256355), (45, 474623), (51, 418785), (85, 251271), (153, 139595), (255, 83757), (765, 27919)]