21471216

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1811}}^1$

素因数の和:1854

約数の個数: 80

約数和(自身を含む): 62912640

約数和(自身を除く): 41441424

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 208, 228, 247, 304, 312, 456, 494, 624, 741, 912, 988, 1482, 1811, 1976, 2964, 3622, 3952, 5433, 5928, 7244, 10866, 11856, 14488, 21732, 23543, 28976, 34409, 43464, 47086, 68818, 70629, 86928, 94172, 103227, 137636, 141258, 188344, 206454, 275272, 282516, 376688, 412908, 447317, 550544, 565032, 825816, 894634, 1130064, 1341951, 1651632, 1789268, 2683902, 3578536, 5367804, 7157072, 10735608, 21471216]

約数ペア:

[(1, 21471216), (2, 10735608), (3, 7157072), (4, 5367804), (6, 3578536), (8, 2683902), (12, 1789268), (13, 1651632), (16, 1341951), (19, 1130064), (24, 894634), (26, 825816), (38, 565032), (39, 550544), (48, 447317), (52, 412908), (57, 376688), (76, 282516), (78, 275272), (104, 206454), (114, 188344), (152, 141258), (156, 137636), (208, 103227), (228, 94172), (247, 86928), (304, 70629), (312, 68818), (456, 47086), (494, 43464), (624, 34409), (741, 28976), (912, 23543), (988, 21732), (1482, 14488), (1811, 11856), (1976, 10866), (2964, 7244), (3622, 5928), (3952, 5433)]