21602440

素因数分解:

$2^3\times 5^1\times {\mathrm{540061}}^1$

素因数の和:540072

約数の個数: 16

約数和(自身を含む): 48605580

約数和(自身を除く): 27003140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540061, 1080122, 2160244, 2700305, 4320488, 5400610, 10801220, 21602440]

約数ペア:

[(1, 21602440), (2, 10801220), (4, 5400610), (5, 4320488), (8, 2700305), (10, 2160244), (20, 1080122), (40, 540061)]