21082016

素因数分解:

$2^5\times {\mathrm{151}}^1\times {\mathrm{4363}}^1$

素因数の和:4524

約数の個数: 24

約数和(自身を含む): 41789664

約数和(自身を除く): 20707648

約数列:

[1, 2, 4, 8, 16, 32, 151, 302, 604, 1208, 2416, 4363, 4832, 8726, 17452, 34904, 69808, 139616, 658813, 1317626, 2635252, 5270504, 10541008, 21082016]

約数ペア:

[(1, 21082016), (2, 10541008), (4, 5270504), (8, 2635252), (16, 1317626), (32, 658813), (151, 139616), (302, 69808), (604, 34904), (1208, 17452), (2416, 8726), (4363, 4832)]