18405387

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 37078272

約数和(自身を除く): 18672885

約数列:

[1, 3, 7, 9, 11, 13, 21, 27, 33, 39, 63, 77, 81, 91, 99, 117, 143, 189, 227, 231, 273, 297, 351, 429, 567, 681, 693, 819, 891, 1001, 1053, 1287, 1589, 2043, 2079, 2457, 2497, 2951, 3003, 3861, 4767, 6129, 6237, 7371, 7491, 8853, 9009, 11583, 14301, 17479, 18387, 20657, 22473, 26559, 27027, 32461, 42903, 52437, 61971, 67419, 79677, 81081, 97383, 128709, 157311, 185913, 202257, 227227, 239031, 292149, 471933, 557739, 681681, 876447, 1415799, 1673217, 2045043, 2629341, 6135129, 18405387]

約数ペア:

[(1, 18405387), (3, 6135129), (7, 2629341), (9, 2045043), (11, 1673217), (13, 1415799), (21, 876447), (27, 681681), (33, 557739), (39, 471933), (63, 292149), (77, 239031), (81, 227227), (91, 202257), (99, 185913), (117, 157311), (143, 128709), (189, 97383), (227, 81081), (231, 79677), (273, 67419), (297, 61971), (351, 52437), (429, 42903), (567, 32461), (681, 27027), (693, 26559), (819, 22473), (891, 20657), (1001, 18387), (1053, 17479), (1287, 14301), (1589, 11583), (2043, 9009), (2079, 8853), (2457, 7491), (2497, 7371), (2951, 6237), (3003, 6129), (3861, 4767)]