20519982

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1093}}^1$

素因数の和:1257

約数の個数: 48

約数和(自身を含む): 51199200

約数和(自身を除く): 30679218

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 149, 298, 447, 894, 1043, 1093, 1341, 2086, 2186, 2682, 3129, 3279, 6258, 6558, 7651, 9387, 9837, 15302, 18774, 19674, 22953, 45906, 68859, 137718, 162857, 325714, 488571, 977142, 1139999, 1465713, 2279998, 2931426, 3419997, 6839994, 10259991, 20519982]

約数ペア:

[(1, 20519982), (2, 10259991), (3, 6839994), (6, 3419997), (7, 2931426), (9, 2279998), (14, 1465713), (18, 1139999), (21, 977142), (42, 488571), (63, 325714), (126, 162857), (149, 137718), (298, 68859), (447, 45906), (894, 22953), (1043, 19674), (1093, 18774), (1341, 15302), (2086, 9837), (2186, 9387), (2682, 7651), (3129, 6558), (3279, 6258)]