21051528

素因数分解:

$2^3\times 3^1\times {\mathrm{661}}^1\times {\mathrm{1327}}^1$

素因数の和:1997

約数の個数: 32

約数和(自身を含む): 52748160

約数和(自身を除く): 31696632

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 661, 1322, 1327, 1983, 2644, 2654, 3966, 3981, 5288, 5308, 7932, 7962, 10616, 15864, 15924, 31848, 877147, 1754294, 2631441, 3508588, 5262882, 7017176, 10525764, 21051528]

約数ペア:

[(1, 21051528), (2, 10525764), (3, 7017176), (4, 5262882), (6, 3508588), (8, 2631441), (12, 1754294), (24, 877147), (661, 31848), (1322, 15924), (1327, 15864), (1983, 10616), (2644, 7962), (2654, 7932), (3966, 5308), (3981, 5288)]