31009209

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 53231616

約数和(自身を除く): 22222407

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 127, 147, 151, 231, 381, 453, 539, 889, 1057, 1397, 1617, 1661, 2667, 3171, 4191, 4983, 6223, 7399, 9779, 11627, 18669, 19177, 22197, 29337, 34881, 57531, 68453, 81389, 134239, 205359, 210947, 244167, 402717, 632841, 939673, 1476629, 2819019, 4429887, 10336403, 31009209]

約数ペア:

[(1, 31009209), (3, 10336403), (7, 4429887), (11, 2819019), (21, 1476629), (33, 939673), (49, 632841), (77, 402717), (127, 244167), (147, 210947), (151, 205359), (231, 134239), (381, 81389), (453, 68453), (539, 57531), (889, 34881), (1057, 29337), (1397, 22197), (1617, 19177), (1661, 18669), (2667, 11627), (3171, 9779), (4191, 7399), (4983, 6223)]