21061113

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{821}}^1$

素因数の和:1344

約数の個数: 16

約数和(自身を含む): 29828736

約数和(自身を除く): 8767623

約数列:

[1, 3, 17, 51, 503, 821, 1509, 2463, 8551, 13957, 25653, 41871, 412963, 1238889, 7020371, 21061113]

約数ペア:

[(1, 21061113), (3, 7020371), (17, 1238889), (51, 412963), (503, 41871), (821, 25653), (1509, 13957), (2463, 8551)]