217355859

素因数分解:

$3^3\times 7^1\times {\mathrm{1150031}}^1$

素因数の和:1150047

約数の個数: 16

約数和(自身を含む): 368010240

約数和(自身を除く): 150654381

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 1150031, 3450093, 8050217, 10350279, 24150651, 31050837, 72451953, 217355859]

約数ペア:

[(1, 217355859), (3, 72451953), (7, 31050837), (9, 24150651), (21, 10350279), (27, 8050217), (63, 3450093), (189, 1150031)]