19665888

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{1693}}^1$

素因数の和:1728

約数の個数: 72

約数和(自身を含む): 56776104

約数和(自身を除く): 37110216

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 121, 132, 176, 242, 264, 352, 363, 484, 528, 726, 968, 1056, 1452, 1693, 1936, 2904, 3386, 3872, 5079, 5808, 6772, 10158, 11616, 13544, 18623, 20316, 27088, 37246, 40632, 54176, 55869, 74492, 81264, 111738, 148984, 162528, 204853, 223476, 297968, 409706, 446952, 595936, 614559, 819412, 893904, 1229118, 1638824, 1787808, 2458236, 3277648, 4916472, 6555296, 9832944, 19665888]

約数ペア:

[(1, 19665888), (2, 9832944), (3, 6555296), (4, 4916472), (6, 3277648), (8, 2458236), (11, 1787808), (12, 1638824), (16, 1229118), (22, 893904), (24, 819412), (32, 614559), (33, 595936), (44, 446952), (48, 409706), (66, 297968), (88, 223476), (96, 204853), (121, 162528), (132, 148984), (176, 111738), (242, 81264), (264, 74492), (352, 55869), (363, 54176), (484, 40632), (528, 37246), (726, 27088), (968, 20316), (1056, 18623), (1452, 13544), (1693, 11616), (1936, 10158), (2904, 6772), (3386, 5808), (3872, 5079)]