21460465

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 28262520

約数和(自身を除く): 6802055

約数列:

[1, 5, 13, 65, 109, 169, 233, 545, 845, 1165, 1417, 3029, 7085, 15145, 18421, 25397, 39377, 92105, 126985, 196885, 330161, 1650805, 4292093, 21460465]

約数ペア:

[(1, 21460465), (5, 4292093), (13, 1650805), (65, 330161), (109, 196885), (169, 126985), (233, 92105), (545, 39377), (845, 25397), (1165, 18421), (1417, 15145), (3029, 7085)]