18888584

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 44688000

約数和(自身を除く): 25799416

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 79, 88, 104, 121, 143, 152, 158, 209, 242, 247, 286, 316, 418, 484, 494, 572, 632, 836, 869, 968, 988, 1027, 1144, 1501, 1573, 1672, 1738, 1976, 2054, 2299, 2717, 3002, 3146, 3476, 4108, 4598, 5434, 6004, 6292, 6952, 8216, 9196, 9559, 10868, 11297, 12008, 12584, 16511, 18392, 19118, 19513, 21736, 22594, 29887, 33022, 38236, 39026, 45188, 59774, 66044, 76472, 78052, 90376, 119548, 124267, 132088, 156104, 181621, 214643, 239096, 248534, 363242, 429286, 497068, 726484, 858572, 994136, 1452968, 1717144, 2361073, 4722146, 9444292, 18888584]

約数ペア:

[(1, 18888584), (2, 9444292), (4, 4722146), (8, 2361073), (11, 1717144), (13, 1452968), (19, 994136), (22, 858572), (26, 726484), (38, 497068), (44, 429286), (52, 363242), (76, 248534), (79, 239096), (88, 214643), (104, 181621), (121, 156104), (143, 132088), (152, 124267), (158, 119548), (209, 90376), (242, 78052), (247, 76472), (286, 66044), (316, 59774), (418, 45188), (484, 39026), (494, 38236), (572, 33022), (632, 29887), (836, 22594), (869, 21736), (968, 19513), (988, 19118), (1027, 18392), (1144, 16511), (1501, 12584), (1573, 12008), (1672, 11297), (1738, 10868), (1976, 9559), (2054, 9196), (2299, 8216), (2717, 6952), (3002, 6292), (3146, 6004), (3476, 5434), (4108, 4598)]