28161729

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 44064000

約数和(自身を除く): 15902271

約数列:

[1, 3, 9, 23, 27, 69, 101, 207, 303, 449, 621, 909, 1347, 2323, 2727, 4041, 6969, 10327, 12123, 20907, 30981, 45349, 62721, 92943, 136047, 278829, 408141, 1043027, 1224423, 3129081, 9387243, 28161729]

約数ペア:

[(1, 28161729), (3, 9387243), (9, 3129081), (23, 1224423), (27, 1043027), (69, 408141), (101, 278829), (207, 136047), (303, 92943), (449, 62721), (621, 45349), (909, 30981), (1347, 20907), (2323, 12123), (2727, 10327), (4041, 6969)]