21755090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1861}}^1$

素因数の和:2042

約数の個数: 32

約数和(自身を含む): 45045504

約数和(自身を除く): 23290414

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 167, 334, 835, 1169, 1670, 1861, 2338, 3722, 5845, 9305, 11690, 13027, 18610, 26054, 65135, 130270, 310787, 621574, 1553935, 2175509, 3107870, 4351018, 10877545, 21755090]

約数ペア:

[(1, 21755090), (2, 10877545), (5, 4351018), (7, 3107870), (10, 2175509), (14, 1553935), (35, 621574), (70, 310787), (167, 130270), (334, 65135), (835, 26054), (1169, 18610), (1670, 13027), (1861, 11690), (2338, 9305), (3722, 5845)]