20210211

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2153}}^1$

素因数の和:2315

約数の個数: 24

約数和(自身を含む): 33602400

約数和(自身を除く): 13392189

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 2153, 3129, 6459, 9387, 15071, 19377, 45213, 135639, 320797, 962391, 2245579, 2887173, 6736737, 20210211]

約数ペア:

[(1, 20210211), (3, 6736737), (7, 2887173), (9, 2245579), (21, 962391), (63, 320797), (149, 135639), (447, 45213), (1043, 19377), (1341, 15071), (2153, 9387), (3129, 6459)]