319819521

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{127979}}^1$

素因数の和:128013

約数の個数: 24

約数和(自身を含む): 525229920

約数和(自身を除く): 205410399

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 127979, 383937, 895853, 2175643, 2687559, 6270971, 6526929, 15229501, 18812913, 45688503, 106606507, 319819521]

約数ペア:

[(1, 319819521), (3, 106606507), (7, 45688503), (17, 18812913), (21, 15229501), (49, 6526929), (51, 6270971), (119, 2687559), (147, 2175643), (357, 895853), (833, 383937), (2499, 127979)]