19920309

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{503}}^1$

素因数の和:856

約数の個数: 16

約数和(自身を含む): 27320832

約数和(自身を除く): 7400523

約数列:

[1, 3, 43, 129, 307, 503, 921, 1509, 13201, 21629, 39603, 64887, 154421, 463263, 6640103, 19920309]

約数ペア:

[(1, 19920309), (3, 6640103), (43, 463263), (129, 154421), (307, 64887), (503, 39603), (921, 21629), (1509, 13201)]