20920995

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24469}}^1$

素因数の和:24499

約数の個数: 24

約数和(自身を含む): 38173200

約数和(自身を除く): 17252205

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24469, 73407, 122345, 220221, 367035, 464911, 1101105, 1394733, 2324555, 4184199, 6973665, 20920995]

約数ペア:

[(1, 20920995), (3, 6973665), (5, 4184199), (9, 2324555), (15, 1394733), (19, 1101105), (45, 464911), (57, 367035), (95, 220221), (171, 122345), (285, 73407), (855, 24469)]