21566171

素因数分解:

${\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 24167808

約数和(自身を除く): 2601637

約数列:

[1, 11, 73, 107, 251, 803, 1177, 2761, 7811, 18323, 26857, 85921, 201553, 295427, 1960561, 21566171]

約数ペア:

[(1, 21566171), (11, 1960561), (73, 295427), (107, 201553), (251, 85921), (803, 26857), (1177, 18323), (2761, 7811)]