28712385

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49081}}^1$

素因数の和:49105

約数の個数: 24

約数和(自身を含む): 53597544

約数和(自身を除く): 24885159

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 49081, 147243, 245405, 441729, 638053, 736215, 1914159, 2208645, 3190265, 5742477, 9570795, 28712385]

約数ペア:

[(1, 28712385), (3, 9570795), (5, 5742477), (9, 3190265), (13, 2208645), (15, 1914159), (39, 736215), (45, 638053), (65, 441729), (117, 245405), (195, 147243), (585, 49081)]