18189392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:735

約数の個数: 40

約数和(自身を含む): 38263176

約数和(自身を除く): 20073784

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 208, 314, 557, 628, 1114, 1256, 2041, 2228, 2512, 4082, 4456, 7241, 8164, 8912, 14482, 16328, 28964, 32656, 57928, 87449, 115856, 174898, 349796, 699592, 1136837, 1399184, 2273674, 4547348, 9094696, 18189392]

約数ペア:

[(1, 18189392), (2, 9094696), (4, 4547348), (8, 2273674), (13, 1399184), (16, 1136837), (26, 699592), (52, 349796), (104, 174898), (157, 115856), (208, 87449), (314, 57928), (557, 32656), (628, 28964), (1114, 16328), (1256, 14482), (2041, 8912), (2228, 8164), (2512, 7241), (4082, 4456)]