19399707

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{2243}}^1$

素因数の和:2311

約数の個数: 18

約数和(自身を含む): 28967796

約数和(自身を除く): 9568089

約数列:

[1, 3, 9, 31, 93, 279, 961, 2243, 2883, 6729, 8649, 20187, 69533, 208599, 625797, 2155523, 6466569, 19399707]

約数ペア:

[(1, 19399707), (3, 6466569), (9, 2155523), (31, 625797), (93, 208599), (279, 69533), (961, 20187), (2243, 8649), (2883, 6729)]