31148733

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 56033280

約数和(自身を除く): 24884547

約数列:

[1, 3, 7, 11, 19, 21, 33, 47, 57, 77, 133, 141, 151, 209, 231, 329, 399, 453, 517, 627, 893, 987, 1057, 1463, 1551, 1661, 2679, 2869, 3171, 3619, 4389, 4983, 6251, 7097, 8607, 9823, 10857, 11627, 18753, 20083, 21291, 29469, 31559, 34881, 49679, 60249, 68761, 78067, 94677, 134843, 149037, 206283, 220913, 234201, 404529, 546469, 662739, 943901, 1483273, 1639407, 2831703, 4449819, 10382911, 31148733]

約数ペア:

[(1, 31148733), (3, 10382911), (7, 4449819), (11, 2831703), (19, 1639407), (21, 1483273), (33, 943901), (47, 662739), (57, 546469), (77, 404529), (133, 234201), (141, 220913), (151, 206283), (209, 149037), (231, 134843), (329, 94677), (399, 78067), (453, 68761), (517, 60249), (627, 49679), (893, 34881), (987, 31559), (1057, 29469), (1463, 21291), (1551, 20083), (1661, 18753), (2679, 11627), (2869, 10857), (3171, 9823), (3619, 8607), (4389, 7097), (4983, 6251)]