1320006321

素因数分解:

$3^3\times {\mathrm{239}}^1\times {\mathrm{204557}}^1$

素因数の和:204805

約数の個数: 16

約数和(自身を含む): 1963756800

約数和(自身を除く): 643750479

約数列:

[1, 3, 9, 27, 239, 717, 2151, 6453, 204557, 613671, 1841013, 5523039, 48889123, 146667369, 440002107, 1320006321]

約数ペア:

[(1, 1320006321), (3, 440002107), (9, 146667369), (27, 48889123), (239, 5523039), (717, 1841013), (2151, 613671), (6453, 204557)]