71781021

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 119508480

約数和(自身を除く): 47727459

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 151, 153, 221, 239, 453, 663, 717, 1359, 1963, 1989, 2151, 2567, 3107, 4063, 5889, 7701, 9321, 12189, 17667, 23103, 27963, 33371, 36089, 36567, 52819, 100113, 108267, 158457, 300339, 324801, 469157, 475371, 613513, 1407471, 1840539, 4222413, 5521617, 7975669, 23927007, 71781021]

約数ペア:

[(1, 71781021), (3, 23927007), (9, 7975669), (13, 5521617), (17, 4222413), (39, 1840539), (51, 1407471), (117, 613513), (151, 475371), (153, 469157), (221, 324801), (239, 300339), (453, 158457), (663, 108267), (717, 100113), (1359, 52819), (1963, 36567), (1989, 36089), (2151, 33371), (2567, 27963), (3107, 23103), (4063, 17667), (5889, 12189), (7701, 9321)]