21180416

素因数分解:

$2^{12}\times {\mathrm{5171}}^1$

素因数の和:5195

約数の個数: 26

約数和(自身を含む): 42363852

約数和(自身を除く): 21183436

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 5171, 10342, 20684, 41368, 82736, 165472, 330944, 661888, 1323776, 2647552, 5295104, 10590208, 21180416]

約数ペア:

[(1, 21180416), (2, 10590208), (4, 5295104), (8, 2647552), (16, 1323776), (32, 661888), (64, 330944), (128, 165472), (256, 82736), (512, 41368), (1024, 20684), (2048, 10342), (4096, 5171)]