21891063

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 29756160

約数和(自身を除く): 7865097

約数列:

[1, 3, 89, 163, 267, 489, 503, 1509, 14507, 43521, 44767, 81989, 134301, 245967, 7297021, 21891063]

約数ペア:

[(1, 21891063), (3, 7297021), (89, 245967), (163, 134301), (267, 81989), (489, 44767), (503, 43521), (1509, 14507)]