28291263

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9421}}^1$

素因数の和:9455

約数の個数: 32

約数和(自身を含む): 50652672

約数和(自身を除く): 22361409

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 9421, 28263, 65947, 103631, 122473, 197841, 310893, 367419, 725417, 857311, 1347203, 2176251, 2571933, 4041609, 9430421, 28291263]

約数ペア:

[(1, 28291263), (3, 9430421), (7, 4041609), (11, 2571933), (13, 2176251), (21, 1347203), (33, 857311), (39, 725417), (77, 367419), (91, 310893), (143, 197841), (231, 122473), (273, 103631), (429, 65947), (1001, 28263), (3003, 9421)]