20170801

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:330

約数の個数: 20

約数和(自身を含む): 24379904

約数和(自身を除く): 4209103

約数列:

[1, 7, 31, 49, 217, 271, 343, 1519, 1897, 2401, 8401, 10633, 13279, 58807, 74431, 92953, 411649, 650671, 2881543, 20170801]

約数ペア:

[(1, 20170801), (7, 2881543), (31, 650671), (49, 411649), (217, 92953), (271, 74431), (343, 58807), (1519, 13279), (1897, 10633), (2401, 8401)]