19718217

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 29203200

約数和(自身を除く): 9484983

約数列:

[1, 3, 9, 89, 103, 239, 267, 309, 717, 801, 927, 2151, 9167, 21271, 24617, 27501, 63813, 73851, 82503, 191439, 221553, 2190913, 6572739, 19718217]

約数ペア:

[(1, 19718217), (3, 6572739), (9, 2190913), (89, 221553), (103, 191439), (239, 82503), (267, 73851), (309, 63813), (717, 27501), (801, 24617), (927, 21271), (2151, 9167)]