19720029

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{32381}}^1$

素因数の和:32420

約数の個数: 16

約数和(自身を含む): 31086720

約数和(自身を除く): 11366691

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 32381, 97143, 226667, 680001, 939049, 2817147, 6573343, 19720029]

約数ペア:

[(1, 19720029), (3, 6573343), (7, 2817147), (21, 939049), (29, 680001), (87, 226667), (203, 97143), (609, 32381)]