19747156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 45158400

約数和(自身を除く): 25411244

約数列:

[1, 2, 4, 11, 13, 19, 22, 23, 26, 38, 44, 46, 52, 76, 79, 92, 143, 158, 209, 247, 253, 286, 299, 316, 418, 437, 494, 506, 572, 598, 836, 869, 874, 988, 1012, 1027, 1196, 1501, 1738, 1748, 1817, 2054, 2717, 3002, 3289, 3476, 3634, 4108, 4807, 5434, 5681, 6004, 6578, 7268, 9614, 10868, 11297, 11362, 13156, 16511, 19228, 19513, 19987, 22594, 22724, 23621, 33022, 34523, 39026, 39974, 45188, 47242, 62491, 66044, 69046, 78052, 79948, 94484, 124982, 138092, 214643, 249964, 259831, 379753, 429286, 448799, 519662, 759506, 858572, 897598, 1039324, 1519012, 1795196, 4936789, 9873578, 19747156]

約数ペア:

[(1, 19747156), (2, 9873578), (4, 4936789), (11, 1795196), (13, 1519012), (19, 1039324), (22, 897598), (23, 858572), (26, 759506), (38, 519662), (44, 448799), (46, 429286), (52, 379753), (76, 259831), (79, 249964), (92, 214643), (143, 138092), (158, 124982), (209, 94484), (247, 79948), (253, 78052), (286, 69046), (299, 66044), (316, 62491), (418, 47242), (437, 45188), (494, 39974), (506, 39026), (572, 34523), (598, 33022), (836, 23621), (869, 22724), (874, 22594), (988, 19987), (1012, 19513), (1027, 19228), (1196, 16511), (1501, 13156), (1738, 11362), (1748, 11297), (1817, 10868), (2054, 9614), (2717, 7268), (3002, 6578), (3289, 6004), (3476, 5681), (3634, 5434), (4108, 4807)]