21400760

素因数分解:

$2^3\times 5^1\times {\mathrm{535019}}^1$

素因数の和:535030

約数の個数: 16

約数和(自身を含む): 48151800

約数和(自身を除く): 26751040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 535019, 1070038, 2140076, 2675095, 4280152, 5350190, 10700380, 21400760]

約数ペア:

[(1, 21400760), (2, 10700380), (4, 5350190), (5, 4280152), (8, 2675095), (10, 2140076), (20, 1070038), (40, 535019)]