217754478

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 547762176

約数和(自身を除く): 330007698

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 31, 38, 46, 47, 57, 62, 69, 93, 94, 114, 138, 141, 171, 186, 207, 279, 282, 342, 361, 414, 423, 437, 558, 589, 713, 722, 846, 874, 893, 1081, 1083, 1178, 1311, 1426, 1457, 1767, 1786, 2139, 2162, 2166, 2622, 2679, 2914, 3243, 3249, 3534, 3933, 4278, 4371, 5301, 5358, 6417, 6486, 6498, 7866, 8037, 8303, 8742, 9729, 10602, 11191, 12834, 13113, 13547, 16074, 16606, 16967, 19458, 20539, 22382, 24909, 26226, 27094, 27683, 33511, 33573, 33934, 40641, 41078, 49818, 50901, 55366, 61617, 67022, 67146, 74727, 81282, 83049, 100533, 100719, 101802, 121923, 123234, 149454, 152703, 166098, 184851, 201066, 201438, 243846, 249147, 257393, 301599, 305406, 369702, 390241, 498294, 514786, 525977, 603198, 636709, 772179, 780482, 1051954, 1170723, 1273418, 1544358, 1577931, 1910127, 2316537, 2341446, 3155862, 3512169, 3820254, 4633074, 4733793, 5730381, 7024338, 9467586, 11460762, 12097471, 24194942, 36292413, 72584826, 108877239, 217754478]

約数ペア:

[(1, 217754478), (2, 108877239), (3, 72584826), (6, 36292413), (9, 24194942), (18, 12097471), (19, 11460762), (23, 9467586), (31, 7024338), (38, 5730381), (46, 4733793), (47, 4633074), (57, 3820254), (62, 3512169), (69, 3155862), (93, 2341446), (94, 2316537), (114, 1910127), (138, 1577931), (141, 1544358), (171, 1273418), (186, 1170723), (207, 1051954), (279, 780482), (282, 772179), (342, 636709), (361, 603198), (414, 525977), (423, 514786), (437, 498294), (558, 390241), (589, 369702), (713, 305406), (722, 301599), (846, 257393), (874, 249147), (893, 243846), (1081, 201438), (1083, 201066), (1178, 184851), (1311, 166098), (1426, 152703), (1457, 149454), (1767, 123234), (1786, 121923), (2139, 101802), (2162, 100719), (2166, 100533), (2622, 83049), (2679, 81282), (2914, 74727), (3243, 67146), (3249, 67022), (3534, 61617), (3933, 55366), (4278, 50901), (4371, 49818), (5301, 41078), (5358, 40641), (6417, 33934), (6486, 33573), (6498, 33511), (7866, 27683), (8037, 27094), (8303, 26226), (8742, 24909), (9729, 22382), (10602, 20539), (11191, 19458), (12834, 16967), (13113, 16606), (13547, 16074)]