20554597

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 24117120

約数和(自身を除く): 3562523

約数列:

[1, 7, 59, 157, 317, 413, 1099, 2219, 9263, 18703, 49769, 64841, 130921, 348383, 2936371, 20554597]

約数ペア:

[(1, 20554597), (7, 2936371), (59, 348383), (157, 130921), (317, 64841), (413, 49769), (1099, 18703), (2219, 9263)]