19977728

素因数分解:

$2^9\times {\mathrm{39019}}^1$

素因数の和:39037

約数の個数: 20

約数和(自身を含む): 39917460

約数和(自身を除く): 19939732

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 39019, 78038, 156076, 312152, 624304, 1248608, 2497216, 4994432, 9988864, 19977728]

約数ペア:

[(1, 19977728), (2, 9988864), (4, 4994432), (8, 2497216), (16, 1248608), (32, 624304), (64, 312152), (128, 156076), (256, 78038), (512, 39019)]