21520768

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{8849}}^1$

素因数の和:8882

約数の個数: 32

約数和(自身を含む): 45135000

約数和(自身を除く): 23614232

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 8849, 17698, 35396, 70792, 141584, 168131, 283168, 336262, 566336, 672524, 1132672, 1345048, 2690096, 5380192, 10760384, 21520768]

約数ペア:

[(1, 21520768), (2, 10760384), (4, 5380192), (8, 2690096), (16, 1345048), (19, 1132672), (32, 672524), (38, 566336), (64, 336262), (76, 283168), (128, 168131), (152, 141584), (304, 70792), (608, 35396), (1216, 17698), (2432, 8849)]