20815616

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4783}}^1$

素因数の和:4816

約数の個数: 36

約数和(自身を含む): 44003232

約数和(自身を除く): 23187616

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4783, 9566, 19132, 38264, 76528, 81311, 153056, 162622, 306112, 325244, 612224, 650488, 1224448, 1300976, 2601952, 5203904, 10407808, 20815616]

約数ペア:

[(1, 20815616), (2, 10407808), (4, 5203904), (8, 2601952), (16, 1300976), (17, 1224448), (32, 650488), (34, 612224), (64, 325244), (68, 306112), (128, 162622), (136, 153056), (256, 81311), (272, 76528), (544, 38264), (1088, 19132), (2176, 9566), (4352, 4783)]