21351778

素因数分解:

$2^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{2417}}^1$

素因数の和:3057

約数の個数: 16

約数和(自身を含む): 36676224

約数和(自身を除く): 15324446

約数列:

[1, 2, 7, 14, 631, 1262, 2417, 4417, 4834, 8834, 16919, 33838, 1525127, 3050254, 10675889, 21351778]

約数ペア:

[(1, 21351778), (2, 10675889), (7, 3050254), (14, 1525127), (631, 33838), (1262, 16919), (2417, 8834), (4417, 4834)]