20129853

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^2$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 29882304

約数和(自身を除く): 9752451

約数列:

[1, 3, 17, 23, 51, 69, 131, 391, 393, 1173, 2227, 3013, 6681, 9039, 17161, 51221, 51483, 153663, 291737, 394703, 875211, 1184109, 6709951, 20129853]

約数ペア:

[(1, 20129853), (3, 6709951), (17, 1184109), (23, 875211), (51, 394703), (69, 291737), (131, 153663), (391, 51483), (393, 51221), (1173, 17161), (2227, 9039), (3013, 6681)]