21056128

素因数分解:

$2^7\times {\mathrm{179}}^1\times {\mathrm{919}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 42228000

約数和(自身を除く): 21171872

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 179, 358, 716, 919, 1432, 1838, 2864, 3676, 5728, 7352, 11456, 14704, 22912, 29408, 58816, 117632, 164501, 329002, 658004, 1316008, 2632016, 5264032, 10528064, 21056128]

約数ペア:

[(1, 21056128), (2, 10528064), (4, 5264032), (8, 2632016), (16, 1316008), (32, 658004), (64, 329002), (128, 164501), (179, 117632), (358, 58816), (716, 29408), (919, 22912), (1432, 14704), (1838, 11456), (2864, 7352), (3676, 5728)]