21077936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 26918992

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 41, 44, 46, 82, 88, 92, 127, 164, 176, 184, 253, 254, 328, 368, 451, 506, 508, 656, 902, 943, 1012, 1016, 1397, 1804, 1886, 2024, 2032, 2794, 2921, 3608, 3772, 4048, 5207, 5588, 5842, 7216, 7544, 10373, 10414, 11176, 11684, 15088, 20746, 20828, 22352, 23368, 32131, 41492, 41656, 46736, 57277, 64262, 82984, 83312, 114554, 119761, 128524, 165968, 229108, 239522, 257048, 458216, 479044, 514096, 916432, 958088, 1317371, 1916176, 2634742, 5269484, 10538968, 21077936]

約数ペア:

[(1, 21077936), (2, 10538968), (4, 5269484), (8, 2634742), (11, 1916176), (16, 1317371), (22, 958088), (23, 916432), (41, 514096), (44, 479044), (46, 458216), (82, 257048), (88, 239522), (92, 229108), (127, 165968), (164, 128524), (176, 119761), (184, 114554), (253, 83312), (254, 82984), (328, 64262), (368, 57277), (451, 46736), (506, 41656), (508, 41492), (656, 32131), (902, 23368), (943, 22352), (1012, 20828), (1016, 20746), (1397, 15088), (1804, 11684), (1886, 11176), (2024, 10414), (2032, 10373), (2794, 7544), (2921, 7216), (3608, 5842), (3772, 5588), (4048, 5207)]