20902875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{7963}}^1$

素因数の和:7988

約数の個数: 32

約数和(自身を含む): 39756288

約数和(自身を除く): 18853413

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 7963, 23889, 39815, 55741, 119445, 167223, 199075, 278705, 597225, 836115, 995375, 1393525, 2986125, 4180575, 6967625, 20902875]

約数ペア:

[(1, 20902875), (3, 6967625), (5, 4180575), (7, 2986125), (15, 1393525), (21, 995375), (25, 836115), (35, 597225), (75, 278705), (105, 199075), (125, 167223), (175, 119445), (375, 55741), (525, 39815), (875, 23889), (2625, 7963)]