19712909151

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1\times {\mathrm{1091}}^1$

素因数の和:1896

約数の個数: 48

約数和(自身を含む): 30849043680

約数和(自身を除く): 11136134529

約数列:

[1, 3, 9, 13, 39, 117, 389, 397, 1091, 1167, 1191, 3273, 3501, 3573, 5057, 5161, 9819, 14183, 15171, 15483, 42549, 45513, 46449, 127647, 154433, 424399, 433127, 463299, 1273197, 1299381, 1389897, 2007629, 3819591, 3898143, 5517187, 5630651, 6022887, 16551561, 16891953, 18068661, 49654683, 50675859, 168486403, 505459209, 1516377627, 2190323239, 6570969717, 19712909151]

約数ペア:

[(1, 19712909151), (3, 6570969717), (9, 2190323239), (13, 1516377627), (39, 505459209), (117, 168486403), (389, 50675859), (397, 49654683), (1091, 18068661), (1167, 16891953), (1191, 16551561), (3273, 6022887), (3501, 5630651), (3573, 5517187), (5057, 3898143), (5161, 3819591), (9819, 2007629), (14183, 1389897), (15171, 1299381), (15483, 1273197), (42549, 463299), (45513, 433127), (46449, 424399), (127647, 154433)]