18659168

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 72

約数和(自身を含む): 41559840

約数和(自身を除く): 22900672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 61, 79, 88, 121, 122, 158, 176, 242, 244, 316, 352, 484, 488, 632, 671, 869, 968, 976, 1264, 1342, 1738, 1936, 1952, 2528, 2684, 3476, 3872, 4819, 5368, 6952, 7381, 9559, 9638, 10736, 13904, 14762, 19118, 19276, 21472, 27808, 29524, 38236, 38552, 53009, 59048, 76472, 77104, 106018, 118096, 152944, 154208, 212036, 236192, 305888, 424072, 583099, 848144, 1166198, 1696288, 2332396, 4664792, 9329584, 18659168]

約数ペア:

[(1, 18659168), (2, 9329584), (4, 4664792), (8, 2332396), (11, 1696288), (16, 1166198), (22, 848144), (32, 583099), (44, 424072), (61, 305888), (79, 236192), (88, 212036), (121, 154208), (122, 152944), (158, 118096), (176, 106018), (242, 77104), (244, 76472), (316, 59048), (352, 53009), (484, 38552), (488, 38236), (632, 29524), (671, 27808), (869, 21472), (968, 19276), (976, 19118), (1264, 14762), (1342, 13904), (1738, 10736), (1936, 9638), (1952, 9559), (2528, 7381), (2684, 6952), (3476, 5368), (3872, 4819)]