51913239

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 81561600

約数和(自身を除く): 29648361

約数列:

[1, 3, 7, 21, 47, 141, 149, 329, 353, 447, 987, 1043, 1059, 2471, 3129, 7003, 7413, 16591, 21009, 49021, 49773, 52597, 116137, 147063, 157791, 348411, 368179, 1104537, 2472059, 7416177, 17304413, 51913239]

約数ペア:

[(1, 51913239), (3, 17304413), (7, 7416177), (21, 2472059), (47, 1104537), (141, 368179), (149, 348411), (329, 157791), (353, 147063), (447, 116137), (987, 52597), (1043, 49773), (1059, 49021), (2471, 21009), (3129, 16591), (7003, 7413)]