18907702

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:169

約数の個数: 48

約数和(自身を含む): 33707520

約数和(自身を除く): 14799818

約数列:

[1, 2, 11, 22, 23, 43, 46, 79, 86, 121, 158, 242, 253, 473, 506, 869, 946, 989, 1738, 1817, 1978, 2783, 3397, 3634, 5203, 5566, 6794, 9559, 10406, 10879, 19118, 19987, 21758, 37367, 39974, 74734, 78131, 119669, 156262, 219857, 239338, 411037, 439714, 822074, 859441, 1718882, 9453851, 18907702]

約数ペア:

[(1, 18907702), (2, 9453851), (11, 1718882), (22, 859441), (23, 822074), (43, 439714), (46, 411037), (79, 239338), (86, 219857), (121, 156262), (158, 119669), (242, 78131), (253, 74734), (473, 39974), (506, 37367), (869, 21758), (946, 19987), (989, 19118), (1738, 10879), (1817, 10406), (1978, 9559), (2783, 6794), (3397, 5566), (3634, 5203)]