28278753

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:325

約数の個数: 24

約数和(自身を含む): 40028352

約数和(自身を除く): 11749599

約数列:

[1, 3, 23, 69, 103, 173, 309, 519, 529, 1587, 2369, 3979, 7107, 11937, 17819, 53457, 54487, 91517, 163461, 274551, 409837, 1229511, 9426251, 28278753]

約数ペア:

[(1, 28278753), (3, 9426251), (23, 1229511), (69, 409837), (103, 274551), (173, 163461), (309, 91517), (519, 54487), (529, 53457), (1587, 17819), (2369, 11937), (3979, 7107)]