20977281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4373}}^1$

素因数の和:4433

約数の個数: 24

約数和(自身を含む): 33434856

約数和(自身を除く): 12457575

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4373, 4797, 13119, 39357, 56849, 170547, 179293, 511641, 537879, 1613637, 2330809, 6992427, 20977281]

約数ペア:

[(1, 20977281), (3, 6992427), (9, 2330809), (13, 1613637), (39, 537879), (41, 511641), (117, 179293), (123, 170547), (369, 56849), (533, 39357), (1599, 13119), (4373, 4797)]