21788964

素因数分解:

$2^2\times 3^2\times {\mathrm{605249}}^1$

素因数の和:605259

約数の個数: 18

約数和(自身を含む): 55077750

約数和(自身を除く): 33288786

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 605249, 1210498, 1815747, 2420996, 3631494, 5447241, 7262988, 10894482, 21788964]

約数ペア:

[(1, 21788964), (2, 10894482), (3, 7262988), (4, 5447241), (6, 3631494), (9, 2420996), (12, 1815747), (18, 1210498), (36, 605249)]