21428319

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{15101}}^1$

素因数の和:15158

約数の個数: 16

約数和(自身を含む): 31895424

約数和(自身を除く): 10467105

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 15101, 45303, 166111, 498333, 649343, 1948029, 7142773, 21428319]

約数ペア:

[(1, 21428319), (3, 7142773), (11, 1948029), (33, 649343), (43, 498333), (129, 166111), (473, 45303), (1419, 15101)]