21780753

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{619}}^1$

素因数の和:976

約数の個数: 16

約数和(自身を含む): 29968320

約数和(自身を除く): 8187567

約数列:

[1, 3, 37, 111, 317, 619, 951, 1857, 11729, 22903, 35187, 68709, 196223, 588669, 7260251, 21780753]

約数ペア:

[(1, 21780753), (3, 7260251), (37, 588669), (111, 196223), (317, 68709), (619, 35187), (951, 22903), (1857, 11729)]