20517530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{9817}}^1$

素因数の和:9854

約数の個数: 32

約数和(自身を含む): 42413760

約数和(自身を除く): 21896230

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 9817, 19634, 49085, 98170, 107987, 186523, 215974, 373046, 539935, 932615, 1079870, 1865230, 2051753, 4103506, 10258765, 20517530]

約数ペア:

[(1, 20517530), (2, 10258765), (5, 4103506), (10, 2051753), (11, 1865230), (19, 1079870), (22, 932615), (38, 539935), (55, 373046), (95, 215974), (110, 186523), (190, 107987), (209, 98170), (418, 49085), (1045, 19634), (2090, 9817)]