18619986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{983}}^1$

素因数の和:1047

約数の個数: 64

約数和(自身を含む): 47609856

約数和(自身を除く): 28989870

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 41, 42, 66, 77, 82, 123, 154, 231, 246, 287, 451, 462, 574, 861, 902, 983, 1353, 1722, 1966, 2706, 2949, 3157, 5898, 6314, 6881, 9471, 10813, 13762, 18942, 20643, 21626, 32439, 40303, 41286, 64878, 75691, 80606, 120909, 151382, 227073, 241818, 282121, 443333, 454146, 564242, 846363, 886666, 1329999, 1692726, 2659998, 3103331, 6206662, 9309993, 18619986]

約数ペア:

[(1, 18619986), (2, 9309993), (3, 6206662), (6, 3103331), (7, 2659998), (11, 1692726), (14, 1329999), (21, 886666), (22, 846363), (33, 564242), (41, 454146), (42, 443333), (66, 282121), (77, 241818), (82, 227073), (123, 151382), (154, 120909), (231, 80606), (246, 75691), (287, 64878), (451, 41286), (462, 40303), (574, 32439), (861, 21626), (902, 20643), (983, 18942), (1353, 13762), (1722, 10813), (1966, 9471), (2706, 6881), (2949, 6314), (3157, 5898)]