21002553

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16319}}^1$

素因数の和:16349

約数の個数: 24

約数和(自身を含む): 35642880

約数和(自身を除く): 14640327

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16319, 48957, 146871, 179509, 212147, 538527, 636441, 1615581, 1909323, 2333617, 7000851, 21002553]

約数ペア:

[(1, 21002553), (3, 7000851), (9, 2333617), (11, 1909323), (13, 1615581), (33, 636441), (39, 538527), (99, 212147), (117, 179509), (143, 146871), (429, 48957), (1287, 16319)]