21195846

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1129}}^1$

素因数の和:1293

約数の個数: 48

約数和(自身を含む): 52884000

約数和(自身を除く): 31688154

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 149, 298, 447, 894, 1043, 1129, 1341, 2086, 2258, 2682, 3129, 3387, 6258, 6774, 7903, 9387, 10161, 15806, 18774, 20322, 23709, 47418, 71127, 142254, 168221, 336442, 504663, 1009326, 1177547, 1513989, 2355094, 3027978, 3532641, 7065282, 10597923, 21195846]

約数ペア:

[(1, 21195846), (2, 10597923), (3, 7065282), (6, 3532641), (7, 3027978), (9, 2355094), (14, 1513989), (18, 1177547), (21, 1009326), (42, 504663), (63, 336442), (126, 168221), (149, 142254), (298, 71127), (447, 47418), (894, 23709), (1043, 20322), (1129, 18774), (1341, 15806), (2086, 10161), (2258, 9387), (2682, 7903), (3129, 6774), (3387, 6258)]