21459117

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 31034016

約数和(自身を除く): 9574899

約数列:

[1, 3, 17, 51, 53, 159, 289, 467, 867, 901, 1401, 2703, 7939, 15317, 23817, 24751, 45951, 74253, 134963, 404889, 420767, 1262301, 7153039, 21459117]

約数ペア:

[(1, 21459117), (3, 7153039), (17, 1262301), (51, 420767), (53, 404889), (159, 134963), (289, 74253), (467, 45951), (867, 24751), (901, 23817), (1401, 15317), (2703, 7939)]