28510209

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4973}}^1$

素因数の和:5006

約数の個数: 36

約数和(自身を含む): 51600276

約数和(自身を除く): 23090067

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 4973, 5733, 14919, 34811, 44757, 64649, 104433, 193947, 243677, 313299, 452543, 581841, 731031, 1357629, 2193093, 3167801, 4072887, 9503403, 28510209]

約数ペア:

[(1, 28510209), (3, 9503403), (7, 4072887), (9, 3167801), (13, 2193093), (21, 1357629), (39, 731031), (49, 581841), (63, 452543), (91, 313299), (117, 243677), (147, 193947), (273, 104433), (441, 64649), (637, 44757), (819, 34811), (1911, 14919), (4973, 5733)]