21083525

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{991}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 28045824

約数和(自身を除く): 6962299

約数列:

[1, 5, 23, 25, 37, 115, 185, 575, 851, 925, 991, 4255, 4955, 21275, 22793, 24775, 36667, 113965, 183335, 569825, 843341, 916675, 4216705, 21083525]

約数ペア:

[(1, 21083525), (5, 4216705), (23, 916675), (25, 843341), (37, 569825), (115, 183335), (185, 113965), (575, 36667), (851, 24775), (925, 22793), (991, 21275), (4255, 4955)]