21359871

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10739}}^1$

素因数の和:10775

約数の個数: 24

約数和(自身を含む): 35184240

約数和(自身を除く): 13824369

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10739, 32217, 96651, 139607, 182563, 418821, 547689, 1256463, 1643067, 2373319, 7119957, 21359871]

約数ペア:

[(1, 21359871), (3, 7119957), (9, 2373319), (13, 1643067), (17, 1256463), (39, 547689), (51, 418821), (117, 182563), (153, 139607), (221, 96651), (663, 32217), (1989, 10739)]