21495027

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 29486592

約数和(自身を除く): 7991565

約数列:

[1, 3, 47, 141, 157, 471, 971, 2913, 7379, 22137, 45637, 136911, 152447, 457341, 7165009, 21495027]

約数ペア:

[(1, 21495027), (3, 7165009), (47, 457341), (141, 152447), (157, 136911), (471, 45637), (971, 22137), (2913, 7379)]