20784429

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 9946323

約数列:

[1, 3, 9, 107, 113, 191, 321, 339, 573, 963, 1017, 1719, 12091, 20437, 21583, 36273, 61311, 64749, 108819, 183933, 194247, 2309381, 6928143, 20784429]

約数ペア:

[(1, 20784429), (3, 6928143), (9, 2309381), (107, 194247), (113, 183933), (191, 108819), (321, 64749), (339, 61311), (573, 36273), (963, 21583), (1017, 20437), (1719, 12091)]