21669340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14071}}^1$

素因数の和:14098

約数の個数: 48

約数和(自身を含む): 56738304

約数和(自身を除く): 35068964

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 14071, 28142, 56284, 70355, 98497, 140710, 154781, 196994, 281420, 309562, 393988, 492485, 619124, 773905, 984970, 1083467, 1547810, 1969940, 2166934, 3095620, 4333868, 5417335, 10834670, 21669340]

約数ペア:

[(1, 21669340), (2, 10834670), (4, 5417335), (5, 4333868), (7, 3095620), (10, 2166934), (11, 1969940), (14, 1547810), (20, 1083467), (22, 984970), (28, 773905), (35, 619124), (44, 492485), (55, 393988), (70, 309562), (77, 281420), (110, 196994), (140, 154781), (154, 140710), (220, 98497), (308, 70355), (385, 56284), (770, 28142), (1540, 14071)]