28724241

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15031}}^1$

素因数の和:15061

約数の個数: 24

約数和(自身を含む): 47982144

約数和(自身を除く): 19257903

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 15031, 45093, 105217, 195403, 315651, 586209, 736519, 1367821, 2209557, 4103463, 9574747, 28724241]

約数ペア:

[(1, 28724241), (3, 9574747), (7, 4103463), (13, 2209557), (21, 1367821), (39, 736519), (49, 586209), (91, 315651), (147, 195403), (273, 105217), (637, 45093), (1911, 15031)]