28291809

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3343}}^1$

素因数の和:3397

約数の個数: 32

約数和(自身を含む): 47939584

約数和(自身を除く): 19647775

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2821, 3343, 8463, 10029, 23401, 43459, 70203, 103633, 130377, 304213, 310899, 725431, 912639, 1347229, 2176293, 4041687, 9430603, 28291809]

約数ペア:

[(1, 28291809), (3, 9430603), (7, 4041687), (13, 2176293), (21, 1347229), (31, 912639), (39, 725431), (91, 310899), (93, 304213), (217, 130377), (273, 103633), (403, 70203), (651, 43459), (1209, 23401), (2821, 10029), (3343, 8463)]