19788928

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{2917}}^1$

素因数の和:2984

約数の個数: 32

約数和(自身を含む): 40180860

約数和(自身を除く): 20391932

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 424, 848, 1696, 2917, 3392, 5834, 6784, 11668, 23336, 46672, 93344, 154601, 186688, 309202, 373376, 618404, 1236808, 2473616, 4947232, 9894464, 19788928]

約数ペア:

[(1, 19788928), (2, 9894464), (4, 4947232), (8, 2473616), (16, 1236808), (32, 618404), (53, 373376), (64, 309202), (106, 186688), (128, 154601), (212, 93344), (424, 46672), (848, 23336), (1696, 11668), (2917, 6784), (3392, 5834)]