19874816

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1526

約数の個数: 44

約数和(自身を含む): 42815052

約数和(自身を除く): 22940236

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1493, 1664, 2986, 3328, 5972, 6656, 11944, 13312, 19409, 23888, 38818, 47776, 77636, 95552, 155272, 191104, 310544, 382208, 621088, 764416, 1242176, 1528832, 2484352, 4968704, 9937408, 19874816]

約数ペア:

[(1, 19874816), (2, 9937408), (4, 4968704), (8, 2484352), (13, 1528832), (16, 1242176), (26, 764416), (32, 621088), (52, 382208), (64, 310544), (104, 191104), (128, 155272), (208, 95552), (256, 77636), (416, 47776), (512, 38818), (832, 23888), (1024, 19409), (1493, 13312), (1664, 11944), (2986, 6656), (3328, 5972)]