21222217521

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{577}}^1\times {\mathrm{86951}}^1$

素因数の和:87581

約数の個数: 24

約数和(自身を含む): 31361151744

約数和(自身を除く): 10138934223

約数列:

[1, 3, 9, 47, 141, 423, 577, 1731, 5193, 27119, 81357, 86951, 244071, 260853, 782559, 4086697, 12260091, 36780273, 50170727, 150512181, 451536543, 2358024169, 7074072507, 21222217521]

約数ペア:

[(1, 21222217521), (3, 7074072507), (9, 2358024169), (47, 451536543), (141, 150512181), (423, 50170727), (577, 36780273), (1731, 12260091), (5193, 4086697), (27119, 782559), (81357, 260853), (86951, 244071)]