21549764

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1301}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 39044376

約数和(自身を除く): 17494612

約数列:

[1, 2, 4, 41, 82, 101, 164, 202, 404, 1301, 2602, 4141, 5204, 8282, 16564, 53341, 106682, 131401, 213364, 262802, 525604, 5387441, 10774882, 21549764]

約数ペア:

[(1, 21549764), (2, 10774882), (4, 5387441), (41, 525604), (82, 262802), (101, 213364), (164, 131401), (202, 106682), (404, 53341), (1301, 16564), (2602, 8282), (4141, 5204)]