21757563

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 33190560

約数和(自身を除く): 11432997

約数列:

[1, 3, 9, 23, 69, 89, 207, 267, 801, 1181, 2047, 3543, 6141, 10629, 18423, 27163, 81489, 105109, 244467, 315327, 945981, 2417507, 7252521, 21757563]

約数ペア:

[(1, 21757563), (3, 7252521), (9, 2417507), (23, 945981), (69, 315327), (89, 244467), (207, 105109), (267, 81489), (801, 27163), (1181, 18423), (2047, 10629), (3543, 6141)]