21104392

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{29641}}^1$

素因数の和:29736

約数の個数: 16

約数和(自身を含む): 40016700

約数和(自身を除く): 18912308

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 29641, 59282, 118564, 237128, 2638049, 5276098, 10552196, 21104392]

約数ペア:

[(1, 21104392), (2, 10552196), (4, 5276098), (8, 2638049), (89, 237128), (178, 118564), (356, 59282), (712, 29641)]