21000944781

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{743}}^1\times {\mathrm{10867}}^1$

素因数の和:11650

約数の個数: 36

約数和(自身を含む): 32270395872

約数和(自身を除く): 11269451091

約数列:

[1, 3, 9, 17, 51, 153, 289, 743, 867, 2229, 2601, 6687, 10867, 12631, 32601, 37893, 97803, 113679, 184739, 214727, 554217, 644181, 1662651, 1932543, 3140563, 8074181, 9421689, 24222543, 28265067, 72667629, 137261077, 411783231, 1235349693, 2333438309, 7000314927, 21000944781]

約数ペア:

[(1, 21000944781), (3, 7000314927), (9, 2333438309), (17, 1235349693), (51, 411783231), (153, 137261077), (289, 72667629), (743, 28265067), (867, 24222543), (2229, 9421689), (2601, 8074181), (6687, 3140563), (10867, 1932543), (12631, 1662651), (32601, 644181), (37893, 554217), (97803, 214727), (113679, 184739)]