21123040

素因数分解:

$2^5\times 5^1\times {\mathrm{132019}}^1$

素因数の和:132034

約数の個数: 24

約数和(自身を含む): 49903560

約数和(自身を除く): 28780520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132019, 264038, 528076, 660095, 1056152, 1320190, 2112304, 2640380, 4224608, 5280760, 10561520, 21123040]

約数ペア:

[(1, 21123040), (2, 10561520), (4, 5280760), (5, 4224608), (8, 2640380), (10, 2112304), (16, 1320190), (20, 1056152), (32, 660095), (40, 528076), (80, 264038), (160, 132019)]