21064653

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{173}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 31161312

約数和(自身を除く): 10096659

約数列:

[1, 3, 9, 83, 163, 173, 249, 489, 519, 747, 1467, 1557, 13529, 14359, 28199, 40587, 43077, 84597, 121761, 129231, 253791, 2340517, 7021551, 21064653]

約数ペア:

[(1, 21064653), (3, 7021551), (9, 2340517), (83, 253791), (163, 129231), (173, 121761), (249, 84597), (489, 43077), (519, 40587), (747, 28199), (1467, 14359), (1557, 13529)]