28908819

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{2063}}^1$

素因数の和:2248

約数の個数: 20

約数和(自身を含む): 43455456

約数和(自身を除く): 14546637

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 2063, 4671, 6189, 14013, 18567, 55701, 167103, 356899, 1070697, 3212091, 9636273, 28908819]

約数ペア:

[(1, 28908819), (3, 9636273), (9, 3212091), (27, 1070697), (81, 356899), (173, 167103), (519, 55701), (1557, 18567), (2063, 14013), (4671, 6189)]