21621012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 65544192

約数和(自身を除く): 43923180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 23, 28, 31, 38, 42, 46, 57, 62, 69, 76, 84, 92, 93, 114, 124, 133, 138, 161, 186, 217, 228, 266, 276, 322, 361, 372, 399, 434, 437, 483, 532, 589, 644, 651, 713, 722, 798, 868, 874, 966, 1083, 1178, 1302, 1311, 1426, 1444, 1596, 1748, 1767, 1932, 2139, 2166, 2356, 2527, 2604, 2622, 2852, 3059, 3534, 4123, 4278, 4332, 4991, 5054, 5244, 6118, 7068, 7581, 8246, 8303, 8556, 9177, 9982, 10108, 11191, 12236, 12369, 13547, 14973, 15162, 16492, 16606, 18354, 19964, 22382, 24738, 24909, 27094, 29946, 30324, 33212, 33573, 36708, 40641, 44764, 49476, 49818, 54188, 58121, 59892, 67146, 78337, 81282, 94829, 99636, 116242, 134292, 156674, 162564, 174363, 189658, 232484, 235011, 257393, 284487, 313348, 348726, 379316, 470022, 514786, 568974, 697452, 772179, 940044, 1029572, 1137948, 1544358, 1801751, 3088716, 3603502, 5405253, 7207004, 10810506, 21621012]

約数ペア:

[(1, 21621012), (2, 10810506), (3, 7207004), (4, 5405253), (6, 3603502), (7, 3088716), (12, 1801751), (14, 1544358), (19, 1137948), (21, 1029572), (23, 940044), (28, 772179), (31, 697452), (38, 568974), (42, 514786), (46, 470022), (57, 379316), (62, 348726), (69, 313348), (76, 284487), (84, 257393), (92, 235011), (93, 232484), (114, 189658), (124, 174363), (133, 162564), (138, 156674), (161, 134292), (186, 116242), (217, 99636), (228, 94829), (266, 81282), (276, 78337), (322, 67146), (361, 59892), (372, 58121), (399, 54188), (434, 49818), (437, 49476), (483, 44764), (532, 40641), (589, 36708), (644, 33573), (651, 33212), (713, 30324), (722, 29946), (798, 27094), (868, 24909), (874, 24738), (966, 22382), (1083, 19964), (1178, 18354), (1302, 16606), (1311, 16492), (1426, 15162), (1444, 14973), (1596, 13547), (1748, 12369), (1767, 12236), (1932, 11191), (2139, 10108), (2166, 9982), (2356, 9177), (2527, 8556), (2604, 8303), (2622, 8246), (2852, 7581), (3059, 7068), (3534, 6118), (4123, 5244), (4278, 5054), (4332, 4991)]