21019377

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{739}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 29600000

約数和(自身を除く): 8580623

約数列:

[1, 3, 19, 57, 499, 739, 1497, 2217, 9481, 14041, 28443, 42123, 368761, 1106283, 7006459, 21019377]

約数ペア:

[(1, 21019377), (3, 7006459), (19, 1106283), (57, 368761), (499, 42123), (739, 28443), (1497, 14041), (2217, 9481)]