21487904

素因数分解:

$2^5\times {\mathrm{151}}^1\times {\mathrm{4447}}^1$

素因数の和:4608

約数の個数: 24

約数和(自身を含む): 42594048

約数和(自身を除く): 21106144

約数列:

[1, 2, 4, 8, 16, 32, 151, 302, 604, 1208, 2416, 4447, 4832, 8894, 17788, 35576, 71152, 142304, 671497, 1342994, 2685988, 5371976, 10743952, 21487904]

約数ペア:

[(1, 21487904), (2, 10743952), (4, 5371976), (8, 2685988), (16, 1342994), (32, 671497), (151, 142304), (302, 71152), (604, 35576), (1208, 17788), (2416, 8894), (4447, 4832)]