20939475

素因数分解:

$3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{3137}}^1$

素因数の和:3239

約数の個数: 24

約数和(自身を含む): 35020080

約数和(自身を除く): 14080605

約数列:

[1, 3, 5, 15, 25, 75, 89, 267, 445, 1335, 2225, 3137, 6675, 9411, 15685, 47055, 78425, 235275, 279193, 837579, 1395965, 4187895, 6979825, 20939475]

約数ペア:

[(1, 20939475), (3, 6979825), (5, 4187895), (15, 1395965), (25, 837579), (75, 279193), (89, 235275), (267, 78425), (445, 47055), (1335, 15685), (2225, 9411), (3137, 6675)]