18493909

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{233}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 24261120

約数和(自身を除く): 5767211

約数列:

[1, 7, 17, 23, 29, 119, 161, 203, 233, 391, 493, 667, 1631, 2737, 3451, 3961, 4669, 5359, 6757, 11339, 27727, 37513, 47299, 79373, 91103, 114869, 155411, 637721, 804083, 1087877, 2641987, 18493909]

約数ペア:

[(1, 18493909), (7, 2641987), (17, 1087877), (23, 804083), (29, 637721), (119, 155411), (161, 114869), (203, 91103), (233, 79373), (391, 47299), (493, 37513), (667, 27727), (1631, 11339), (2737, 6757), (3451, 5359), (3961, 4669)]