31165947

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 20051973

約数列:

[1, 3, 9, 17, 19, 51, 57, 71, 151, 153, 171, 213, 323, 453, 639, 969, 1207, 1349, 1359, 2567, 2869, 2907, 3621, 4047, 7701, 8607, 10721, 10863, 12141, 22933, 23103, 25821, 32163, 48773, 68799, 96489, 146319, 182257, 203699, 206397, 438957, 546771, 611097, 1640313, 1833291, 3462883, 10388649, 31165947]

約数ペア:

[(1, 31165947), (3, 10388649), (9, 3462883), (17, 1833291), (19, 1640313), (51, 611097), (57, 546771), (71, 438957), (151, 206397), (153, 203699), (171, 182257), (213, 146319), (323, 96489), (453, 68799), (639, 48773), (969, 32163), (1207, 25821), (1349, 23103), (1359, 22933), (2567, 12141), (2869, 10863), (2907, 10721), (3621, 8607), (4047, 7701)]