21178112

素因数分解:

$2^8\times {\mathrm{82727}}^1$

素因数の和:82743

約数の個数: 18

約数和(自身を含む): 42274008

約数和(自身を除く): 21095896

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 82727, 165454, 330908, 661816, 1323632, 2647264, 5294528, 10589056, 21178112]

約数ペア:

[(1, 21178112), (2, 10589056), (4, 5294528), (8, 2647264), (16, 1323632), (32, 661816), (64, 330908), (128, 165454), (256, 82727)]