21920679

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3209}}^1$

素因数の和:3252

約数の個数: 32

約数和(自身を含む): 36979200

約数和(自身を除く): 15058521

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 3209, 6831, 9627, 28881, 35299, 73807, 86643, 105897, 221421, 317691, 664263, 811877, 953073, 1992789, 2435631, 7306893, 21920679]

約数ペア:

[(1, 21920679), (3, 7306893), (9, 2435631), (11, 1992789), (23, 953073), (27, 811877), (33, 664263), (69, 317691), (99, 221421), (207, 105897), (253, 86643), (297, 73807), (621, 35299), (759, 28881), (2277, 9627), (3209, 6831)]