207290727

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 72

約数和(自身を含む): 363220416

約数和(自身を除く): 155929689

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 73, 137, 141, 147, 219, 329, 411, 423, 441, 511, 657, 959, 987, 1233, 1533, 2303, 2877, 2961, 3431, 3577, 4599, 6439, 6713, 6909, 8631, 10001, 10293, 10731, 19317, 20139, 20727, 24017, 30003, 30879, 32193, 45073, 57951, 60417, 70007, 72051, 90009, 135219, 168119, 210021, 216153, 315511, 405657, 470047, 490049, 504357, 630063, 946533, 1410141, 1470147, 1513071, 2839599, 3290329, 4230423, 4410441, 9870987, 23032303, 29612961, 69096909, 207290727]

約数ペア:

[(1, 207290727), (3, 69096909), (7, 29612961), (9, 23032303), (21, 9870987), (47, 4410441), (49, 4230423), (63, 3290329), (73, 2839599), (137, 1513071), (141, 1470147), (147, 1410141), (219, 946533), (329, 630063), (411, 504357), (423, 490049), (441, 470047), (511, 405657), (657, 315511), (959, 216153), (987, 210021), (1233, 168119), (1533, 135219), (2303, 90009), (2877, 72051), (2961, 70007), (3431, 60417), (3577, 57951), (4599, 45073), (6439, 32193), (6713, 30879), (6909, 30003), (8631, 24017), (10001, 20727), (10293, 20139), (10731, 19317)]