21198726

素因数分解:

$2^1\times 3^3\times {\mathrm{392569}}^1$

素因数の和:392580

約数の個数: 16

約数和(自身を含む): 47108400

約数和(自身を除く): 25909674

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 392569, 785138, 1177707, 2355414, 3533121, 7066242, 10599363, 21198726]

約数ペア:

[(1, 21198726), (2, 10599363), (3, 7066242), (6, 3533121), (9, 2355414), (18, 1177707), (27, 785138), (54, 392569)]