281968239

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{797}}^1\times {\mathrm{991}}^1$

素因数の和:1815

約数の個数: 32

約数和(自身を含む): 455970816

約数和(自身を除く): 174002577

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 797, 991, 2391, 2973, 5579, 6937, 13549, 16737, 16847, 20811, 40647, 50541, 94843, 117929, 284529, 353787, 789827, 2369481, 5528789, 13427059, 16586367, 40281177, 93989413, 281968239]

約数ペア:

[(1, 281968239), (3, 93989413), (7, 40281177), (17, 16586367), (21, 13427059), (51, 5528789), (119, 2369481), (357, 789827), (797, 353787), (991, 284529), (2391, 117929), (2973, 94843), (5579, 50541), (6937, 40647), (13549, 20811), (16737, 16847)]