289997169

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{73847}}^1$

素因数の和:73885

約数の個数: 32

約数和(自身を含む): 510437376

約数和(自身を除く): 220440207

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 73847, 221541, 516929, 812317, 1255399, 1550787, 2436951, 3766197, 5686219, 8787793, 13809389, 17058657, 26363379, 41428167, 96665723, 289997169]

約数ペア:

[(1, 289997169), (3, 96665723), (7, 41428167), (11, 26363379), (17, 17058657), (21, 13809389), (33, 8787793), (51, 5686219), (77, 3766197), (119, 2436951), (187, 1550787), (231, 1255399), (357, 812317), (561, 516929), (1309, 221541), (3927, 73847)]