206520321

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{1831}}^1$

素因数の和:2013

約数の個数: 32

約数和(自身を含む): 325011456

約数和(自身を除く): 118491135

約数列:

[1, 3, 7, 21, 41, 123, 131, 287, 393, 861, 917, 1831, 2751, 5371, 5493, 12817, 16113, 37597, 38451, 75071, 112791, 225213, 239861, 525497, 719583, 1576491, 1679027, 5037081, 9834301, 29502903, 68840107, 206520321]

約数ペア:

[(1, 206520321), (3, 68840107), (7, 29502903), (21, 9834301), (41, 5037081), (123, 1679027), (131, 1576491), (287, 719583), (393, 525497), (861, 239861), (917, 225213), (1831, 112791), (2751, 75071), (5371, 38451), (5493, 37597), (12817, 16113)]