21495051

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{1669}}^1$

素因数の和:1737

約数の個数: 24

約数和(自身を含む): 32825520

約数和(自身を除く): 11330469

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 1669, 4293, 5007, 12879, 15021, 45063, 88457, 135189, 265371, 405567, 796113, 2388339, 7165017, 21495051]

約数ペア:

[(1, 21495051), (3, 7165017), (9, 2388339), (27, 796113), (53, 405567), (81, 265371), (159, 135189), (243, 88457), (477, 45063), (1431, 15021), (1669, 12879), (4293, 5007)]