20861696

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4289}}^1$

素因数の和:4324

約数の個数: 36

約数和(自身を含む): 43843800

約数和(自身を除く): 22982104

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4289, 4864, 8578, 17156, 34312, 68624, 81491, 137248, 162982, 274496, 325964, 548992, 651928, 1097984, 1303856, 2607712, 5215424, 10430848, 20861696]

約数ペア:

[(1, 20861696), (2, 10430848), (4, 5215424), (8, 2607712), (16, 1303856), (19, 1097984), (32, 651928), (38, 548992), (64, 325964), (76, 274496), (128, 162982), (152, 137248), (256, 81491), (304, 68624), (608, 34312), (1216, 17156), (2432, 8578), (4289, 4864)]