393898967

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{421}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 510451200

約数和(自身を除く): 116552233

約数列:

[1, 7, 11, 29, 77, 203, 319, 419, 421, 2233, 2933, 2947, 4609, 4631, 12151, 12209, 32263, 32417, 85057, 85463, 133661, 134299, 176399, 935627, 940093, 1234793, 1940389, 5115571, 13582723, 35808997, 56271281, 393898967]

約数ペア:

[(1, 393898967), (7, 56271281), (11, 35808997), (29, 13582723), (77, 5115571), (203, 1940389), (319, 1234793), (419, 940093), (421, 935627), (2233, 176399), (2933, 134299), (2947, 133661), (4609, 85463), (4631, 85057), (12151, 32417), (12209, 32263)]