21107834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25931}}^1$

素因数の和:25981

約数の個数: 16

約数和(自身を含む): 35474976

約数和(自身を除く): 14367142

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25931, 51862, 285241, 570482, 959447, 1918894, 10553917, 21107834]

約数ペア:

[(1, 21107834), (2, 10553917), (11, 1918894), (22, 959447), (37, 570482), (74, 285241), (407, 51862), (814, 25931)]