19774808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1499}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 39690000

約数和(自身を除く): 19915192

約数列:

[1, 2, 4, 8, 17, 34, 68, 97, 136, 194, 388, 776, 1499, 1649, 2998, 3298, 5996, 6596, 11992, 13192, 25483, 50966, 101932, 145403, 203864, 290806, 581612, 1163224, 2471851, 4943702, 9887404, 19774808]

約数ペア:

[(1, 19774808), (2, 9887404), (4, 4943702), (8, 2471851), (17, 1163224), (34, 581612), (68, 290806), (97, 203864), (136, 145403), (194, 101932), (388, 50966), (776, 25483), (1499, 13192), (1649, 11992), (2998, 6596), (3298, 5996)]