21807825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{22367}}^1$

素因数の和:22393

約数の個数: 24

約数和(自身を含む): 38830848

約数和(自身を除く): 17023023

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 22367, 67101, 111835, 290771, 335505, 559175, 872313, 1453855, 1677525, 4361565, 7269275, 21807825]

約数ペア:

[(1, 21807825), (3, 7269275), (5, 4361565), (13, 1677525), (15, 1453855), (25, 872313), (39, 559175), (65, 335505), (75, 290771), (195, 111835), (325, 67101), (975, 22367)]