21854235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 39053664

約数和(自身を除く): 17199429

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 169, 185, 195, 233, 481, 507, 555, 699, 845, 1165, 1443, 2405, 2535, 3029, 3495, 6253, 7215, 8621, 9087, 15145, 18759, 25863, 31265, 39377, 43105, 45435, 93795, 112073, 118131, 129315, 196885, 336219, 560365, 590655, 1456949, 1681095, 4370847, 7284745, 21854235]

約数ペア:

[(1, 21854235), (3, 7284745), (5, 4370847), (13, 1681095), (15, 1456949), (37, 590655), (39, 560365), (65, 336219), (111, 196885), (169, 129315), (185, 118131), (195, 112073), (233, 93795), (481, 45435), (507, 43105), (555, 39377), (699, 31265), (845, 25863), (1165, 18759), (1443, 15145), (2405, 9087), (2535, 8621), (3029, 7215), (3495, 6253)]