21553885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2339}}^1$

素因数の和:2460

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 5964515

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2339, 9215, 11695, 44441, 222205, 226883, 1134415, 4310777, 21553885]

約数ペア:

[(1, 21553885), (5, 4310777), (19, 1134415), (95, 226883), (97, 222205), (485, 44441), (1843, 11695), (2339, 9215)]