19739349

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1$

素因数の和:1558

約数の個数: 32

約数和(自身を含む): 33914880

約数和(自身を除く): 14175531

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1471, 1491, 1917, 4413, 4473, 10297, 13239, 13419, 30891, 39717, 92673, 104441, 278019, 313323, 731087, 939969, 2193261, 2819907, 6579783, 19739349]

約数ペア:

[(1, 19739349), (3, 6579783), (7, 2819907), (9, 2193261), (21, 939969), (27, 731087), (63, 313323), (71, 278019), (189, 104441), (213, 92673), (497, 39717), (639, 30891), (1471, 13419), (1491, 13239), (1917, 10297), (4413, 4473)]