20555031

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{42557}}^1$

素因数の和:42590

約数の個数: 16

約数和(自身を含む): 32684544

約数和(自身を除く): 12129513

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 42557, 127671, 297899, 893697, 978811, 2936433, 6851677, 20555031]

約数ペア:

[(1, 20555031), (3, 6851677), (7, 2936433), (21, 978811), (23, 893697), (69, 297899), (161, 127671), (483, 42557)]