21092913

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{13241}}^1$

素因数の和:13309

約数の個数: 16

約数和(自身を含む): 31780800

約数和(自身を除く): 10687887

約数列:

[1, 3, 9, 27, 59, 177, 531, 1593, 13241, 39723, 119169, 357507, 781219, 2343657, 7030971, 21092913]

約数ペア:

[(1, 21092913), (3, 7030971), (9, 2343657), (27, 781219), (59, 357507), (177, 119169), (531, 39723), (1593, 13241)]