421005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 774144

約数和(自身を除く): 353139

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 127, 195, 221, 255, 381, 635, 663, 1105, 1651, 1905, 2159, 3315, 4953, 6477, 8255, 10795, 24765, 28067, 32385, 84201, 140335, 421005]

約数ペア:

[(1, 421005), (3, 140335), (5, 84201), (13, 32385), (15, 28067), (17, 24765), (39, 10795), (51, 8255), (65, 6477), (85, 4953), (127, 3315), (195, 2159), (221, 1905), (255, 1651), (381, 1105), (635, 663)]