19171875

素因数分解:

$3^1\times 5^6\times {\mathrm{409}}^1$

素因数の和:442

約数の個数: 28

約数和(自身を含む): 32030840

約数和(自身を除く): 12858965

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 409, 625, 1227, 1875, 2045, 3125, 6135, 9375, 10225, 15625, 30675, 46875, 51125, 153375, 255625, 766875, 1278125, 3834375, 6390625, 19171875]

約数ペア:

[(1, 19171875), (3, 6390625), (5, 3834375), (15, 1278125), (25, 766875), (75, 255625), (125, 153375), (375, 51125), (409, 46875), (625, 30675), (1227, 15625), (1875, 10225), (2045, 9375), (3125, 6135)]