31278321

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2851}}^1$

素因数の和:2933

約数の個数: 24

約数和(自身を含む): 48050496

約数和(自身を除く): 16772175

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 2851, 3657, 8553, 10971, 25659, 65573, 151103, 196719, 453309, 590157, 1359927, 3475369, 10426107, 31278321]

約数ペア:

[(1, 31278321), (3, 10426107), (9, 3475369), (23, 1359927), (53, 590157), (69, 453309), (159, 196719), (207, 151103), (477, 65573), (1219, 25659), (2851, 10971), (3657, 8553)]