71481249

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{449}}^1$

素因数の和:507

約数の個数: 54

約数和(自身を含む): 127044450

約数和(自身を除く): 55563201

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 361, 399, 441, 449, 931, 1083, 1197, 1347, 2527, 2793, 3143, 3249, 4041, 7581, 8379, 8531, 9429, 17689, 22001, 22743, 25593, 28287, 53067, 59717, 66003, 76779, 159201, 162089, 179151, 198009, 418019, 486267, 537453, 1134623, 1254057, 1458801, 3403869, 3762171, 7942361, 10211607, 23827083, 71481249]

約数ペア:

[(1, 71481249), (3, 23827083), (7, 10211607), (9, 7942361), (19, 3762171), (21, 3403869), (49, 1458801), (57, 1254057), (63, 1134623), (133, 537453), (147, 486267), (171, 418019), (361, 198009), (399, 179151), (441, 162089), (449, 159201), (931, 76779), (1083, 66003), (1197, 59717), (1347, 53067), (2527, 28287), (2793, 25593), (3143, 22743), (3249, 22001), (4041, 17689), (7581, 9429), (8379, 8531)]