21627987

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{743}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 29902848

約数和(自身を除く): 8274861

約数列:

[1, 3, 31, 93, 313, 743, 939, 2229, 9703, 23033, 29109, 69099, 232559, 697677, 7209329, 21627987]

約数ペア:

[(1, 21627987), (3, 7209329), (31, 697677), (93, 232559), (313, 69099), (743, 29109), (939, 23033), (2229, 9703)]