21234530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124909}}^1$

素因数の和:124933

約数の個数: 16

約数和(自身を含む): 40470840

約数和(自身を除く): 19236310

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124909, 249818, 624545, 1249090, 2123453, 4246906, 10617265, 21234530]

約数ペア:

[(1, 21234530), (2, 10617265), (5, 4246906), (10, 2123453), (17, 1249090), (34, 624545), (85, 249818), (170, 124909)]