21337176

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 66908160

約数和(自身を除く): 45570984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 31, 34, 42, 51, 56, 62, 68, 84, 93, 102, 119, 124, 136, 168, 186, 204, 217, 238, 241, 248, 357, 372, 408, 434, 476, 482, 527, 651, 714, 723, 744, 868, 952, 964, 1054, 1302, 1428, 1446, 1581, 1687, 1736, 1928, 2108, 2604, 2856, 2892, 3162, 3374, 3689, 4097, 4216, 5061, 5208, 5784, 6324, 6748, 7378, 7471, 8194, 10122, 11067, 12291, 12648, 13496, 14756, 14942, 16388, 20244, 22134, 22413, 24582, 28679, 29512, 29884, 32776, 40488, 44268, 44826, 49164, 52297, 57358, 59768, 86037, 88536, 89652, 98328, 104594, 114716, 127007, 156891, 172074, 179304, 209188, 229432, 254014, 313782, 344148, 381021, 418376, 508028, 627564, 688296, 762042, 889049, 1016056, 1255128, 1524084, 1778098, 2667147, 3048168, 3556196, 5334294, 7112392, 10668588, 21337176]

約数ペア:

[(1, 21337176), (2, 10668588), (3, 7112392), (4, 5334294), (6, 3556196), (7, 3048168), (8, 2667147), (12, 1778098), (14, 1524084), (17, 1255128), (21, 1016056), (24, 889049), (28, 762042), (31, 688296), (34, 627564), (42, 508028), (51, 418376), (56, 381021), (62, 344148), (68, 313782), (84, 254014), (93, 229432), (102, 209188), (119, 179304), (124, 172074), (136, 156891), (168, 127007), (186, 114716), (204, 104594), (217, 98328), (238, 89652), (241, 88536), (248, 86037), (357, 59768), (372, 57358), (408, 52297), (434, 49164), (476, 44826), (482, 44268), (527, 40488), (651, 32776), (714, 29884), (723, 29512), (744, 28679), (868, 24582), (952, 22413), (964, 22134), (1054, 20244), (1302, 16388), (1428, 14942), (1446, 14756), (1581, 13496), (1687, 12648), (1736, 12291), (1928, 11067), (2108, 10122), (2604, 8194), (2856, 7471), (2892, 7378), (3162, 6748), (3374, 6324), (3689, 5784), (4097, 5208), (4216, 5061)]