215894781

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{470359}}^1$

素因数の和:470385

約数の個数: 16

約数和(自身を含む): 338659200

約数和(自身を除く): 122764419

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 470359, 1411077, 4233231, 7996103, 12699693, 23988309, 71964927, 215894781]

約数ペア:

[(1, 215894781), (3, 71964927), (9, 23988309), (17, 12699693), (27, 7996103), (51, 4233231), (153, 1411077), (459, 470359)]