19923911

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2633}}^1$

素因数の和:2710

約数の個数: 16

約数和(自身を含む): 24274944

約数和(自身を除く): 4351033

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2633, 7567, 18431, 60559, 123751, 423913, 866257, 2846273, 19923911]

約数ペア:

[(1, 19923911), (7, 2846273), (23, 866257), (47, 423913), (161, 123751), (329, 60559), (1081, 18431), (2633, 7567)]