20639744

素因数分解:

$2^{12}\times {\mathrm{5039}}^1$

素因数の和:5063

約数の個数: 26

約数和(自身を含む): 41282640

約数和(自身を除く): 20642896

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 5039, 10078, 20156, 40312, 80624, 161248, 322496, 644992, 1289984, 2579968, 5159936, 10319872, 20639744]

約数ペア:

[(1, 20639744), (2, 10319872), (4, 5159936), (8, 2579968), (16, 1289984), (32, 644992), (64, 322496), (128, 161248), (256, 80624), (512, 40312), (1024, 20156), (2048, 10078), (4096, 5039)]