28731003

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{11497}}^1$

素因数の和:11531

約数の個数: 24

約数和(自身を含む): 47187792

約数和(自身を除く): 18456789

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 11497, 34491, 80479, 195449, 241437, 563353, 586347, 1368143, 1690059, 4104429, 9577001, 28731003]

約数ペア:

[(1, 28731003), (3, 9577001), (7, 4104429), (17, 1690059), (21, 1368143), (49, 586347), (51, 563353), (119, 241437), (147, 195449), (357, 80479), (833, 34491), (2499, 11497)]