19699883

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:506

約数の個数: 16

約数和(自身を含む): 23063040

約数和(自身を除く): 3363157

約数列:

[1, 7, 89, 103, 307, 623, 721, 2149, 9167, 27323, 31621, 64169, 191261, 221347, 2814269, 19699883]

約数ペア:

[(1, 19699883), (7, 2814269), (89, 221347), (103, 191261), (307, 64169), (623, 31621), (721, 27323), (2149, 9167)]