209894151

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{28087}}^1$

素因数の和:28190

約数の個数: 16

約数和(自身を含む): 291216384

約数和(自身を除く): 81322233

約数列:

[1, 3, 47, 53, 141, 159, 2491, 7473, 28087, 84261, 1320089, 1488611, 3960267, 4465833, 69964717, 209894151]

約数ペア:

[(1, 209894151), (3, 69964717), (47, 4465833), (53, 3960267), (141, 1488611), (159, 1320089), (2491, 84261), (7473, 28087)]