21778016

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{4027}}^1$

素因数の和:4063

約数の個数: 36

約数和(自身を含む): 46438812

約数和(自身を除く): 24660796

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 4027, 5408, 8054, 16108, 32216, 52351, 64432, 104702, 128864, 209404, 418808, 680563, 837616, 1361126, 1675232, 2722252, 5444504, 10889008, 21778016]

約数ペア:

[(1, 21778016), (2, 10889008), (4, 5444504), (8, 2722252), (13, 1675232), (16, 1361126), (26, 837616), (32, 680563), (52, 418808), (104, 209404), (169, 128864), (208, 104702), (338, 64432), (416, 52351), (676, 32216), (1352, 16108), (2704, 8054), (4027, 5408)]