21003800

素因数分解:

$2^3\times 5^2\times {\mathrm{105019}}^1$

素因数の和:105035

約数の個数: 24

約数和(自身を含む): 48834300

約数和(自身を除く): 27830500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105019, 210038, 420076, 525095, 840152, 1050190, 2100380, 2625475, 4200760, 5250950, 10501900, 21003800]

約数ペア:

[(1, 21003800), (2, 10501900), (4, 5250950), (5, 4200760), (8, 2625475), (10, 2100380), (20, 1050190), (25, 840152), (40, 525095), (50, 420076), (100, 210038), (200, 105019)]