21382156221

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1209877}}^1$

素因数の和:1210060

約数の個数: 16

約数和(自身を含む): 29385516864

約数和(自身を除く): 8003360643

約数列:

[1, 3, 43, 129, 137, 411, 5891, 17673, 1209877, 3629631, 52024711, 156074133, 165753149, 497259447, 7127385407, 21382156221]

約数ペア:

[(1, 21382156221), (3, 7127385407), (43, 497259447), (129, 165753149), (137, 156074133), (411, 52024711), (5891, 3629631), (17673, 1209877)]