21369879

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8893}}^1$

素因数の和:8991

約数の個数: 16

約数和(自身を含む): 32018400

約数和(自身を除く): 10648521

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8893, 26679, 80037, 240111, 791477, 2374431, 7123293, 21369879]

約数ペア:

[(1, 21369879), (3, 7123293), (9, 2374431), (27, 791477), (89, 240111), (267, 80037), (801, 26679), (2403, 8893)]