20128912

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{21323}}^1$

素因数の和:21390

約数の個数: 20

約数和(自身を含む): 39662640

約数和(自身を除く): 19533728

約数列:

[1, 2, 4, 8, 16, 59, 118, 236, 472, 944, 21323, 42646, 85292, 170584, 341168, 1258057, 2516114, 5032228, 10064456, 20128912]

約数ペア:

[(1, 20128912), (2, 10064456), (4, 5032228), (8, 2516114), (16, 1258057), (59, 341168), (118, 170584), (236, 85292), (472, 42646), (944, 21323)]