21906775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2153}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 30448944

約数和(自身を除く): 8542169

約数列:

[1, 5, 11, 25, 37, 55, 185, 275, 407, 925, 2035, 2153, 10175, 10765, 23683, 53825, 79661, 118415, 398305, 592075, 876271, 1991525, 4381355, 21906775]

約数ペア:

[(1, 21906775), (5, 4381355), (11, 1991525), (25, 876271), (37, 592075), (55, 398305), (185, 118415), (275, 79661), (407, 53825), (925, 23683), (2035, 10765), (2153, 10175)]