21308416

素因数分解:

$2^{10}\times {\mathrm{20809}}^1$

素因数の和:20829

約数の個数: 22

約数和(自身を含む): 42598070

約数和(自身を除く): 21289654

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 20809, 41618, 83236, 166472, 332944, 665888, 1331776, 2663552, 5327104, 10654208, 21308416]

約数ペア:

[(1, 21308416), (2, 10654208), (4, 5327104), (8, 2663552), (16, 1331776), (32, 665888), (64, 332944), (128, 166472), (256, 83236), (512, 41618), (1024, 20809)]