12591621

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{743}}^1$

素因数の和:1025

約数の個数: 24

約数和(自身を含む): 20891520

約数和(自身を除く): 8299899

約数列:

[1, 3, 7, 9, 21, 63, 269, 743, 807, 1883, 2229, 2421, 5201, 5649, 6687, 15603, 16947, 46809, 199867, 599601, 1399069, 1798803, 4197207, 12591621]

約数ペア:

[(1, 12591621), (3, 4197207), (7, 1798803), (9, 1399069), (21, 599601), (63, 199867), (269, 46809), (743, 16947), (807, 15603), (1883, 6687), (2229, 5649), (2421, 5201)]