221427199

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{2939}}^1$

素因数の和:3222

約数の個数: 16

約数和(自身を含む): 259660800

約数和(自身を除く): 38233601

約数列:

[1, 7, 47, 229, 329, 1603, 2939, 10763, 20573, 75341, 138133, 673031, 966931, 4711217, 31632457, 221427199]

約数ペア:

[(1, 221427199), (7, 31632457), (47, 4711217), (229, 966931), (329, 673031), (1603, 138133), (2939, 75341), (10763, 20573)]