21528681

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9817}}^1$

素因数の和:9880

約数の個数: 16

約数和(自身を含む): 31103424

約数和(自身を除く): 9574743

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9817, 29451, 166889, 422131, 500667, 1266393, 7176227, 21528681]

約数ペア:

[(1, 21528681), (3, 7176227), (17, 1266393), (43, 500667), (51, 422131), (129, 166889), (731, 29451), (2193, 9817)]