21923629

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 27783168

約数和(自身を除く): 5859539

約数列:

[1, 7, 13, 49, 91, 127, 271, 637, 889, 1651, 1897, 3523, 6223, 11557, 13279, 24661, 34417, 80899, 172627, 240919, 447421, 1686433, 3131947, 21923629]

約数ペア:

[(1, 21923629), (7, 3131947), (13, 1686433), (49, 447421), (91, 240919), (127, 172627), (271, 80899), (637, 34417), (889, 24661), (1651, 13279), (1897, 11557), (3523, 6223)]