21026637

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2593}}^1$

素因数の和:2669

約数の個数: 24

約数和(自身を含む): 32777784

約数和(自身を除く): 11751147

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2593, 2703, 7779, 8109, 23337, 44081, 132243, 137429, 396729, 412287, 1236861, 2336293, 7008879, 21026637]

約数ペア:

[(1, 21026637), (3, 7008879), (9, 2336293), (17, 1236861), (51, 412287), (53, 396729), (153, 137429), (159, 132243), (477, 44081), (901, 23337), (2593, 8109), (2703, 7779)]