6687639

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 12014080

約数和(自身を除く): 5326441

約数列:

[1, 3, 7, 9, 19, 21, 37, 57, 63, 111, 133, 151, 171, 259, 333, 399, 453, 703, 777, 1057, 1197, 1359, 2109, 2331, 2869, 3171, 4921, 5587, 6327, 8607, 9513, 14763, 16761, 20083, 25821, 39109, 44289, 50283, 60249, 106153, 117327, 180747, 318459, 351981, 743071, 955377, 2229213, 6687639]

約数ペア:

[(1, 6687639), (3, 2229213), (7, 955377), (9, 743071), (19, 351981), (21, 318459), (37, 180747), (57, 117327), (63, 106153), (111, 60249), (133, 50283), (151, 44289), (171, 39109), (259, 25821), (333, 20083), (399, 16761), (453, 14763), (703, 9513), (777, 8607), (1057, 6327), (1197, 5587), (1359, 4921), (2109, 3171), (2331, 2869)]