20280861279

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1798427}}^1$

素因数の和:1798619

約数の個数: 24

約数和(自身を含む): 33666572160

約数和(自身を除く): 13385710881

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 3759, 11277, 1798427, 5395281, 12588989, 16185843, 37766967, 113300901, 321918433, 965755299, 2253429031, 2897265897, 6760287093, 20280861279]

約数ペア:

[(1, 20280861279), (3, 6760287093), (7, 2897265897), (9, 2253429031), (21, 965755299), (63, 321918433), (179, 113300901), (537, 37766967), (1253, 16185843), (1611, 12588989), (3759, 5395281), (11277, 1798427)]