208731693

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 297603072

約数和(自身を除く): 88871379

約数列:

[1, 3, 23, 69, 71, 137, 213, 311, 411, 933, 1633, 3151, 4899, 7153, 9453, 9727, 21459, 22081, 29181, 42607, 66243, 127821, 223721, 507863, 671163, 979961, 1523589, 2939883, 3025097, 9075291, 69577231, 208731693]

約数ペア:

[(1, 208731693), (3, 69577231), (23, 9075291), (69, 3025097), (71, 2939883), (137, 1523589), (213, 979961), (311, 671163), (411, 507863), (933, 223721), (1633, 127821), (3151, 66243), (4899, 42607), (7153, 29181), (9453, 22081), (9727, 21459)]