19927971

素因数分解:

$3^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1087}}^1$

素因数の和:1200

約数の個数: 32

約数和(自身を含む): 34119680

約数和(自身を除く): 14191709

約数列:

[1, 3, 7, 9, 21, 27, 63, 97, 189, 291, 679, 873, 1087, 2037, 2619, 3261, 6111, 7609, 9783, 18333, 22827, 29349, 68481, 105439, 205443, 316317, 738073, 948951, 2214219, 2846853, 6642657, 19927971]

約数ペア:

[(1, 19927971), (3, 6642657), (7, 2846853), (9, 2214219), (21, 948951), (27, 738073), (63, 316317), (97, 205443), (189, 105439), (291, 68481), (679, 29349), (873, 22827), (1087, 18333), (2037, 9783), (2619, 7609), (3261, 6111)]