816311991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{7193}}^1$

素因数の和:7407

約数の個数: 32

約数和(自身を含む): 1256935680

約数和(自身を除く): 440623689

約数列:

[1, 3, 11, 19, 33, 57, 181, 209, 543, 627, 1991, 3439, 5973, 7193, 10317, 21579, 37829, 79123, 113487, 136667, 237369, 410001, 1301933, 1503337, 3905799, 4510011, 14321263, 24736727, 42963789, 74210181, 272103997, 816311991]

約数ペア:

[(1, 816311991), (3, 272103997), (11, 74210181), (19, 42963789), (33, 24736727), (57, 14321263), (181, 4510011), (209, 3905799), (543, 1503337), (627, 1301933), (1991, 410001), (3439, 237369), (5973, 136667), (7193, 113487), (10317, 79123), (21579, 37829)]