21036160

素因数分解:

$2^7\times 5^1\times {\mathrm{32869}}^1$

素因数の和:32888

約数の個数: 32

約数和(自身を含む): 50291100

約数和(自身を除く): 29254940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32869, 65738, 131476, 164345, 262952, 328690, 525904, 657380, 1051808, 1314760, 2103616, 2629520, 4207232, 5259040, 10518080, 21036160]

約数ペア:

[(1, 21036160), (2, 10518080), (4, 5259040), (5, 4207232), (8, 2629520), (10, 2103616), (16, 1314760), (20, 1051808), (32, 657380), (40, 525904), (64, 328690), (80, 262952), (128, 164345), (160, 131476), (320, 65738), (640, 32869)]