21106926

素因数分解:

$2^1\times 3^3\times {\mathrm{390869}}^1$

素因数の和:390880

約数の個数: 16

約数和(自身を含む): 46904400

約数和(自身を除く): 25797474

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390869, 781738, 1172607, 2345214, 3517821, 7035642, 10553463, 21106926]

約数ペア:

[(1, 21106926), (2, 10553463), (3, 7035642), (6, 3517821), (9, 2345214), (18, 1172607), (27, 781738), (54, 390869)]