20923539

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10949}}^1$

素因数の和:10979

約数の個数: 24

約数和(自身を含む): 34952400

約数和(自身を除く): 14028861

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10949, 32847, 76643, 142337, 229929, 427011, 536501, 996359, 1609503, 2989077, 6974513, 20923539]

約数ペア:

[(1, 20923539), (3, 6974513), (7, 2989077), (13, 1609503), (21, 996359), (39, 536501), (49, 427011), (91, 229929), (147, 142337), (273, 76643), (637, 32847), (1911, 10949)]