20649105

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24151}}^1$

素因数の和:24181

約数の個数: 24

約数和(自身を含む): 37677120

約数和(自身を除く): 17028015

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 24151, 72453, 120755, 217359, 362265, 458869, 1086795, 1376607, 2294345, 4129821, 6883035, 20649105]

約数ペア:

[(1, 20649105), (3, 6883035), (5, 4129821), (9, 2294345), (15, 1376607), (19, 1086795), (45, 458869), (57, 362265), (95, 217359), (171, 120755), (285, 72453), (855, 24151)]