21515264

素因数分解:

$2^{10}\times {\mathrm{21011}}^1$

素因数の和:21031

約数の個数: 22

約数和(自身を含む): 43011564

約数和(自身を除く): 21496300

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 21011, 42022, 84044, 168088, 336176, 672352, 1344704, 2689408, 5378816, 10757632, 21515264]

約数ペア:

[(1, 21515264), (2, 10757632), (4, 5378816), (8, 2689408), (16, 1344704), (32, 672352), (64, 336176), (128, 168088), (256, 84044), (512, 42022), (1024, 21011)]