21065994

素因数分解:

$2^1\times 3^4\times {\mathrm{109}}^1\times {\mathrm{1193}}^1$

素因数の和:1316

約数の個数: 40

約数和(自身を含む): 47676420

約数和(自身を除く): 26610426

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 109, 162, 218, 327, 654, 981, 1193, 1962, 2386, 2943, 3579, 5886, 7158, 8829, 10737, 17658, 21474, 32211, 64422, 96633, 130037, 193266, 260074, 390111, 780222, 1170333, 2340666, 3510999, 7021998, 10532997, 21065994]

約数ペア:

[(1, 21065994), (2, 10532997), (3, 7021998), (6, 3510999), (9, 2340666), (18, 1170333), (27, 780222), (54, 390111), (81, 260074), (109, 193266), (162, 130037), (218, 96633), (327, 64422), (654, 32211), (981, 21474), (1193, 17658), (1962, 10737), (2386, 8829), (2943, 7158), (3579, 5886)]