21808066

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:610

約数の個数: 32

約数和(自身を含む): 39029760

約数和(自身を除く): 17221694

約数列:

[1, 2, 7, 14, 31, 62, 109, 217, 218, 434, 461, 763, 922, 1526, 3227, 3379, 6454, 6758, 14291, 23653, 28582, 47306, 50249, 100037, 100498, 200074, 351743, 703486, 1557719, 3115438, 10904033, 21808066]

約数ペア:

[(1, 21808066), (2, 10904033), (7, 3115438), (14, 1557719), (31, 703486), (62, 351743), (109, 200074), (217, 100498), (218, 100037), (434, 50249), (461, 47306), (763, 28582), (922, 23653), (1526, 14291), (3227, 6758), (3379, 6454)]