20797203

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{4441}}^1$

素因数の和:4674

約数の個数: 16

約数和(自身を含む): 31840256

約数和(自身を除く): 11043053

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4441, 4683, 13323, 31087, 93261, 990343, 2971029, 6932401, 20797203]

約数ペア:

[(1, 20797203), (3, 6932401), (7, 2971029), (21, 990343), (223, 93261), (669, 31087), (1561, 13323), (4441, 4683)]