20842575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21377}}^1$

素因数の和:21403

約数の個数: 24

約数和(自身を含む): 37112208

約数和(自身を除く): 16269633

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21377, 64131, 106885, 277901, 320655, 534425, 833703, 1389505, 1603275, 4168515, 6947525, 20842575]

約数ペア:

[(1, 20842575), (3, 6947525), (5, 4168515), (13, 1603275), (15, 1389505), (25, 833703), (39, 534425), (65, 320655), (75, 277901), (195, 106885), (325, 64131), (975, 21377)]