21453405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84131}}^1$

素因数の和:84156

約数の個数: 16

約数和(自身を含む): 36345024

約数和(自身を除く): 14891619

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 84131, 252393, 420655, 1261965, 1430227, 4290681, 7151135, 21453405]

約数ペア:

[(1, 21453405), (3, 7151135), (5, 4290681), (15, 1430227), (17, 1261965), (51, 420655), (85, 252393), (255, 84131)]