81980041

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 103197360

約数和(自身を除く): 21217319

約数列:

[1, 11, 13, 19, 121, 143, 169, 209, 211, 247, 1573, 1859, 2299, 2321, 2717, 2743, 3211, 4009, 20449, 25531, 29887, 30173, 35321, 35659, 44099, 52117, 331903, 388531, 392249, 485089, 573287, 677521, 4314739, 6306157, 7452731, 81980041]

約数ペア:

[(1, 81980041), (11, 7452731), (13, 6306157), (19, 4314739), (121, 677521), (143, 573287), (169, 485089), (209, 392249), (211, 388531), (247, 331903), (1573, 52117), (1859, 44099), (2299, 35659), (2321, 35321), (2717, 30173), (2743, 29887), (3211, 25531), (4009, 20449)]