20122999

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 23611392

約数和(自身を除く): 3488393

約数列:

[1, 13, 23, 31, 167, 169, 299, 403, 713, 2171, 3841, 3887, 5177, 5239, 9269, 28223, 49933, 67301, 119071, 120497, 649129, 874913, 1547923, 20122999]

約数ペア:

[(1, 20122999), (13, 1547923), (23, 874913), (31, 649129), (167, 120497), (169, 119071), (299, 67301), (403, 49933), (713, 28223), (2171, 9269), (3841, 5239), (3887, 5177)]