28258209

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{15467}}^1$

素因数の和:15509

約数の個数: 24

約数和(自身を含む): 48260160

約数和(自身を除く): 20001951

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 15467, 46401, 108269, 139203, 324807, 448543, 974421, 1345629, 3139801, 4036887, 9419403, 28258209]

約数ペア:

[(1, 28258209), (3, 9419403), (7, 4036887), (9, 3139801), (21, 1345629), (29, 974421), (63, 448543), (87, 324807), (203, 139203), (261, 108269), (609, 46401), (1827, 15467)]