21774896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:370

約数の個数: 80

約数和(自身を含む): 51330048

約数和(自身を除く): 29555152

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 176, 208, 248, 286, 307, 341, 403, 496, 572, 614, 682, 806, 1144, 1228, 1364, 1612, 2288, 2456, 2728, 3224, 3377, 3991, 4433, 4912, 5456, 6448, 6754, 7982, 8866, 9517, 13508, 15964, 17732, 19034, 27016, 31928, 35464, 38068, 43901, 54032, 63856, 70928, 76136, 87802, 104687, 123721, 152272, 175604, 209374, 247442, 351208, 418748, 494884, 702416, 837496, 989768, 1360931, 1674992, 1979536, 2721862, 5443724, 10887448, 21774896]

約数ペア:

[(1, 21774896), (2, 10887448), (4, 5443724), (8, 2721862), (11, 1979536), (13, 1674992), (16, 1360931), (22, 989768), (26, 837496), (31, 702416), (44, 494884), (52, 418748), (62, 351208), (88, 247442), (104, 209374), (124, 175604), (143, 152272), (176, 123721), (208, 104687), (248, 87802), (286, 76136), (307, 70928), (341, 63856), (403, 54032), (496, 43901), (572, 38068), (614, 35464), (682, 31928), (806, 27016), (1144, 19034), (1228, 17732), (1364, 15964), (1612, 13508), (2288, 9517), (2456, 8866), (2728, 7982), (3224, 6754), (3377, 6448), (3991, 5456), (4433, 4912)]