21979968189

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1201}}^1\times {\mathrm{321077}}^1$

素因数の和:322300

約数の個数: 16

約数和(自身を含む): 30874860480

約数和(自身を除く): 8894892291

約数列:

[1, 3, 19, 57, 1201, 3603, 22819, 68457, 321077, 963231, 6100463, 18301389, 385613477, 1156840431, 7326656063, 21979968189]

約数ペア:

[(1, 21979968189), (3, 7326656063), (19, 1156840431), (57, 385613477), (1201, 18301389), (3603, 6100463), (22819, 963231), (68457, 321077)]