19893009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{2393}}^1$

素因数の和:2576

約数の個数: 16

約数和(自身を含む): 28268352

約数和(自身を除く): 8375343

約数列:

[1, 3, 17, 51, 163, 489, 2393, 2771, 7179, 8313, 40681, 122043, 390059, 1170177, 6631003, 19893009]

約数ペア:

[(1, 19893009), (3, 6631003), (17, 1170177), (51, 390059), (163, 122043), (489, 40681), (2393, 8313), (2771, 7179)]