18305469

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 34524672

約数和(自身を除く): 16219203

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 103, 117, 147, 217, 273, 279, 309, 403, 441, 637, 651, 721, 819, 927, 1209, 1339, 1519, 1911, 1953, 2163, 2821, 3193, 3627, 4017, 4557, 5047, 5733, 6489, 8463, 9373, 9579, 12051, 13671, 15141, 19747, 22351, 25389, 28119, 28737, 41509, 45423, 59241, 65611, 67053, 84357, 124527, 156457, 177723, 196833, 201159, 290563, 373581, 469371, 590499, 871689, 1408113, 2033941, 2615067, 6101823, 18305469]

約数ペア:

[(1, 18305469), (3, 6101823), (7, 2615067), (9, 2033941), (13, 1408113), (21, 871689), (31, 590499), (39, 469371), (49, 373581), (63, 290563), (91, 201159), (93, 196833), (103, 177723), (117, 156457), (147, 124527), (217, 84357), (273, 67053), (279, 65611), (309, 59241), (403, 45423), (441, 41509), (637, 28737), (651, 28119), (721, 25389), (819, 22351), (927, 19747), (1209, 15141), (1339, 13671), (1519, 12051), (1911, 9579), (1953, 9373), (2163, 8463), (2821, 6489), (3193, 5733), (3627, 5047), (4017, 4557)]