28874279

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{2039}}^1$

素因数の和:2087

約数の個数: 18

約数和(自身を含む): 35697960

約数和(自身を除く): 6823681

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 2039, 14161, 14273, 34663, 99911, 242641, 589271, 1698487, 4124897, 28874279]

約数ペア:

[(1, 28874279), (7, 4124897), (17, 1698487), (49, 589271), (119, 242641), (289, 99911), (833, 34663), (2023, 14273), (2039, 14161)]