19906243

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1543}}^1$

素因数の和:1666

約数の個数: 16

約数和(自身を含む): 24209920

約数和(自身を除く): 4303677

約数列:

[1, 7, 19, 97, 133, 679, 1543, 1843, 10801, 12901, 29317, 149671, 205219, 1047697, 2843749, 19906243]

約数ペア:

[(1, 19906243), (7, 2843749), (19, 1047697), (97, 205219), (133, 149671), (679, 29317), (1543, 12901), (1843, 10801)]