19992843

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1597}}^1$

素因数の和:1723

約数の個数: 24

約数和(自身を含む): 31410288

約数和(自身を除く): 11417445

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 1597, 4173, 4791, 12519, 14373, 20761, 62283, 170879, 186849, 512637, 1537911, 2221427, 6664281, 19992843]

約数ペア:

[(1, 19992843), (3, 6664281), (9, 2221427), (13, 1537911), (39, 512637), (107, 186849), (117, 170879), (321, 62283), (963, 20761), (1391, 14373), (1597, 12519), (4173, 4791)]