21990580

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{29717}}^1$

素因数の和:29763

約数の個数: 24

約数和(自身を含む): 47429928

約数和(自身を除く): 25439348

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 29717, 59434, 118868, 148585, 297170, 594340, 1099529, 2199058, 4398116, 5497645, 10995290, 21990580]

約数ペア:

[(1, 21990580), (2, 10995290), (4, 5497645), (5, 4398116), (10, 2199058), (20, 1099529), (37, 594340), (74, 297170), (148, 148585), (185, 118868), (370, 59434), (740, 29717)]