19774976

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{2971}}^1$

素因数の和:3002

約数の個数: 40

約数和(自身を含む): 42564984

約数和(自身を除く): 22790008

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 2971, 3328, 5942, 6656, 11884, 23768, 38623, 47536, 77246, 95072, 154492, 190144, 308984, 380288, 617968, 760576, 1235936, 1521152, 2471872, 4943744, 9887488, 19774976]

約数ペア:

[(1, 19774976), (2, 9887488), (4, 4943744), (8, 2471872), (13, 1521152), (16, 1235936), (26, 760576), (32, 617968), (52, 380288), (64, 308984), (104, 190144), (128, 154492), (208, 95072), (256, 77246), (416, 47536), (512, 38623), (832, 23768), (1664, 11884), (2971, 6656), (3328, 5942)]