201991516797

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{915451}}^1$

素因数の和:915566

約数の個数: 48

約数和(自身を含む): 333956889600

約数和(自身を除く): 131965372803

約数列:

[1, 3, 7, 19, 21, 49, 57, 79, 133, 147, 237, 399, 553, 931, 1501, 1659, 2793, 3871, 4503, 10507, 11613, 31521, 73549, 220647, 915451, 2746353, 6408157, 17393569, 19224471, 44857099, 52180707, 72320629, 121754983, 134571297, 216961887, 365264949, 506244403, 852284881, 1374091951, 1518733209, 2556854643, 3543710821, 4122275853, 9618643657, 10631132463, 28855930971, 67330505599, 201991516797]

約数ペア:

[(1, 201991516797), (3, 67330505599), (7, 28855930971), (19, 10631132463), (21, 9618643657), (49, 4122275853), (57, 3543710821), (79, 2556854643), (133, 1518733209), (147, 1374091951), (237, 852284881), (399, 506244403), (553, 365264949), (931, 216961887), (1501, 134571297), (1659, 121754983), (2793, 72320629), (3871, 52180707), (4503, 44857099), (10507, 19224471), (11613, 17393569), (31521, 6408157), (73549, 2746353), (220647, 915451)]