164039211

素因数分解:

$3^2\times 7^2\times {\mathrm{371971}}^1$

素因数の和:371991

約数の個数: 18

約数和(自身を含む): 275631252

約数和(自身を除く): 111592041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 371971, 1115913, 2603797, 3347739, 7811391, 18226579, 23434173, 54679737, 164039211]

約数ペア:

[(1, 164039211), (3, 54679737), (7, 23434173), (9, 18226579), (21, 7811391), (49, 3347739), (63, 2603797), (147, 1115913), (441, 371971)]