21091904

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{10631}}^1$

素因数の和:10674

約数の個数: 28

約数和(自身を含む): 43208448

約数和(自身を除く): 22116544

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 10631, 21262, 42524, 85048, 170096, 329561, 340192, 659122, 680384, 1318244, 2636488, 5272976, 10545952, 21091904]

約数ペア:

[(1, 21091904), (2, 10545952), (4, 5272976), (8, 2636488), (16, 1318244), (31, 680384), (32, 659122), (62, 340192), (64, 329561), (124, 170096), (248, 85048), (496, 42524), (992, 21262), (1984, 10631)]