21730761

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{2293}}^1$

素因数の和:2324

約数の個数: 28

約数和(自身を含む): 35102788

約数和(自身を除く): 13372027

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 2293, 3159, 6879, 9477, 20637, 29809, 61911, 89427, 185733, 268281, 557199, 804843, 1671597, 2414529, 7243587, 21730761]

約数ペア:

[(1, 21730761), (3, 7243587), (9, 2414529), (13, 1671597), (27, 804843), (39, 557199), (81, 268281), (117, 185733), (243, 89427), (351, 61911), (729, 29809), (1053, 20637), (2293, 9477), (3159, 6879)]