20937075

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{2131}}^1$

素因数の和:2275

約数の個数: 24

約数和(自身を含む): 34896576

約数和(自身を除く): 13959501

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 2131, 3275, 6393, 9825, 10655, 31965, 53275, 159825, 279161, 837483, 1395805, 4187415, 6979025, 20937075]

約数ペア:

[(1, 20937075), (3, 6979025), (5, 4187415), (15, 1395805), (25, 837483), (75, 279161), (131, 159825), (393, 53275), (655, 31965), (1965, 10655), (2131, 9825), (3275, 6393)]