257238663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4943}}^1$

素因数の和:5059

約数の個数: 32

約数和(自身を含む): 398684160

約数和(自身を除く): 141445497

約数列:

[1, 3, 11, 19, 33, 57, 83, 209, 249, 627, 913, 1577, 2739, 4731, 4943, 14829, 17347, 52041, 54373, 93917, 163119, 281751, 410269, 1033087, 1230807, 3099261, 4512959, 7795111, 13538877, 23385333, 85746221, 257238663]

約数ペア:

[(1, 257238663), (3, 85746221), (11, 23385333), (19, 13538877), (33, 7795111), (57, 4512959), (83, 3099261), (209, 1230807), (249, 1033087), (627, 410269), (913, 281751), (1577, 163119), (2739, 93917), (4731, 54373), (4943, 52041), (14829, 17347)]