21000918085

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3726871}}^1$

素因数の和:3726913

約数の個数: 24

約数和(自身を含む): 30590165376

約数和(自身を除く): 9589247291

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 245, 805, 1127, 5635, 3726871, 18634355, 26088097, 85718033, 130440485, 182616679, 428590165, 600026231, 913083395, 3000131155, 4200183617, 21000918085]

約数ペア:

[(1, 21000918085), (5, 4200183617), (7, 3000131155), (23, 913083395), (35, 600026231), (49, 428590165), (115, 182616679), (161, 130440485), (245, 85718033), (805, 26088097), (1127, 18634355), (5635, 3726871)]