20323521

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{229}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 32016000

約数和(自身を除く): 11692479

約数列:

[1, 3, 9, 19, 27, 57, 171, 173, 229, 513, 519, 687, 1557, 2061, 3287, 4351, 4671, 6183, 9861, 13053, 29583, 39159, 39617, 88749, 117477, 118851, 356553, 752723, 1069659, 2258169, 6774507, 20323521]

約数ペア:

[(1, 20323521), (3, 6774507), (9, 2258169), (19, 1069659), (27, 752723), (57, 356553), (171, 118851), (173, 117477), (229, 88749), (513, 39617), (519, 39159), (687, 29583), (1557, 13053), (2061, 9861), (3287, 6183), (4351, 4671)]