21226360

素因数分解:

$2^3\times 5^1\times {\mathrm{530659}}^1$

素因数の和:530670

約数の個数: 16

約数和(自身を含む): 47759400

約数和(自身を除く): 26533040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 530659, 1061318, 2122636, 2653295, 4245272, 5306590, 10613180, 21226360]

約数ペア:

[(1, 21226360), (2, 10613180), (4, 5306590), (5, 4245272), (8, 2653295), (10, 2122636), (20, 1061318), (40, 530659)]