19765067

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^2$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 24935904

約数和(自身を除く): 5170837

約数列:

[1, 7, 17, 37, 67, 119, 259, 469, 629, 1139, 2479, 4403, 4489, 7973, 17353, 31423, 42143, 76313, 166093, 295001, 534191, 1162651, 2823581, 19765067]

約数ペア:

[(1, 19765067), (7, 2823581), (17, 1162651), (37, 534191), (67, 295001), (119, 166093), (259, 76313), (469, 42143), (629, 31423), (1139, 17353), (2479, 7973), (4403, 4489)]