18660774

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:705

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 26128986

約数列:

[1, 2, 3, 6, 11, 19, 22, 23, 33, 38, 46, 57, 66, 69, 114, 138, 209, 253, 418, 437, 506, 627, 647, 759, 874, 1254, 1294, 1311, 1518, 1941, 2622, 3882, 4807, 7117, 9614, 12293, 14234, 14421, 14881, 21351, 24586, 28842, 29762, 36879, 42702, 44643, 73758, 89286, 135223, 163691, 270446, 282739, 327382, 405669, 491073, 565478, 811338, 848217, 982146, 1696434, 3110129, 6220258, 9330387, 18660774]

約数ペア:

[(1, 18660774), (2, 9330387), (3, 6220258), (6, 3110129), (11, 1696434), (19, 982146), (22, 848217), (23, 811338), (33, 565478), (38, 491073), (46, 405669), (57, 327382), (66, 282739), (69, 270446), (114, 163691), (138, 135223), (209, 89286), (253, 73758), (418, 44643), (437, 42702), (506, 36879), (627, 29762), (647, 28842), (759, 24586), (874, 21351), (1254, 14881), (1294, 14421), (1311, 14234), (1518, 12293), (1941, 9614), (2622, 7117), (3882, 4807)]