21681838

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{1427}}^1$

素因数の和:1607

約数の個数: 16

約数和(自身を含む): 33312384

約数和(自身を除く): 11630546

約数列:

[1, 2, 71, 107, 142, 214, 1427, 2854, 7597, 15194, 101317, 152689, 202634, 305378, 10840919, 21681838]

約数ペア:

[(1, 21681838), (2, 10840919), (71, 305378), (107, 202634), (142, 152689), (214, 101317), (1427, 15194), (2854, 7597)]