20453415

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:451

約数の個数: 32

約数和(自身を含む): 33981120

約数和(自身を除く): 13527705

約数列:

[1, 3, 5, 15, 37, 111, 137, 185, 269, 411, 555, 685, 807, 1345, 2055, 4035, 5069, 9953, 15207, 25345, 29859, 36853, 49765, 76035, 110559, 149295, 184265, 552795, 1363561, 4090683, 6817805, 20453415]

約数ペア:

[(1, 20453415), (3, 6817805), (5, 4090683), (15, 1363561), (37, 552795), (111, 184265), (137, 149295), (185, 110559), (269, 76035), (411, 49765), (555, 36853), (685, 29859), (807, 25345), (1345, 15207), (2055, 9953), (4035, 5069)]