2490381

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 3911544

約数和(自身を除く): 1421163

約数列:

[1, 3, 9, 17, 41, 51, 123, 153, 369, 397, 697, 1191, 2091, 3573, 6273, 6749, 16277, 20247, 48831, 60741, 146493, 276709, 830127, 2490381]

約数ペア:

[(1, 2490381), (3, 830127), (9, 276709), (17, 146493), (41, 60741), (51, 48831), (123, 20247), (153, 16277), (369, 6749), (397, 6273), (697, 3573), (1191, 2091)]