20138264559

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{33851}}^1$

素因数の和:33961

約数の個数: 72

約数和(自身を含む): 36121438080

約数和(自身を除く): 15983173521

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 71, 133, 147, 171, 213, 399, 441, 497, 639, 931, 1197, 1349, 1491, 2793, 3479, 4047, 4473, 8379, 9443, 10437, 12141, 28329, 31311, 33851, 66101, 84987, 101553, 198303, 236957, 304659, 594909, 643169, 710871, 1658699, 1929507, 2132613, 2403421, 4502183, 4976097, 5788521, 7210263, 13506549, 14928291, 16823947, 21630789, 31515281, 40519647, 45664999, 50471841, 94545843, 117767629, 136994997, 151415523, 283637529, 319654993, 353302887, 410984991, 958964979, 1059908661, 2237584951, 2876894937, 6712754853, 20138264559]

約数ペア:

[(1, 20138264559), (3, 6712754853), (7, 2876894937), (9, 2237584951), (19, 1059908661), (21, 958964979), (49, 410984991), (57, 353302887), (63, 319654993), (71, 283637529), (133, 151415523), (147, 136994997), (171, 117767629), (213, 94545843), (399, 50471841), (441, 45664999), (497, 40519647), (639, 31515281), (931, 21630789), (1197, 16823947), (1349, 14928291), (1491, 13506549), (2793, 7210263), (3479, 5788521), (4047, 4976097), (4473, 4502183), (8379, 2403421), (9443, 2132613), (10437, 1929507), (12141, 1658699), (28329, 710871), (31311, 643169), (33851, 594909), (66101, 304659), (84987, 236957), (101553, 198303)]