21761906

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1153

約数の個数: 16

約数和(自身を含む): 33436800

約数和(自身を除く): 11674894

約数列:

[1, 2, 53, 106, 239, 478, 859, 1718, 12667, 25334, 45527, 91054, 205301, 410602, 10880953, 21761906]

約数ペア:

[(1, 21761906), (2, 10880953), (53, 410602), (106, 205301), (239, 91054), (478, 45527), (859, 25334), (1718, 12667)]