19931901

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 10259715

約数列:

[1, 3, 11, 33, 47, 71, 141, 181, 213, 517, 543, 781, 1551, 1991, 2343, 3337, 5973, 8507, 10011, 12851, 25521, 36707, 38553, 93577, 110121, 141361, 280731, 424083, 603997, 1811991, 6643967, 19931901]

約数ペア:

[(1, 19931901), (3, 6643967), (11, 1811991), (33, 603997), (47, 424083), (71, 280731), (141, 141361), (181, 110121), (213, 93577), (517, 38553), (543, 36707), (781, 25521), (1551, 12851), (1991, 10011), (2343, 8507), (3337, 5973)]