21187416

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{293}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34696104

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 131, 138, 184, 262, 276, 293, 393, 524, 552, 586, 786, 879, 1048, 1172, 1572, 1758, 2344, 3013, 3144, 3516, 6026, 6739, 7032, 9039, 12052, 13478, 18078, 20217, 24104, 26956, 36156, 38383, 40434, 53912, 72312, 76766, 80868, 115149, 153532, 161736, 230298, 307064, 460596, 882809, 921192, 1765618, 2648427, 3531236, 5296854, 7062472, 10593708, 21187416]

約数ペア:

[(1, 21187416), (2, 10593708), (3, 7062472), (4, 5296854), (6, 3531236), (8, 2648427), (12, 1765618), (23, 921192), (24, 882809), (46, 460596), (69, 307064), (92, 230298), (131, 161736), (138, 153532), (184, 115149), (262, 80868), (276, 76766), (293, 72312), (393, 53912), (524, 40434), (552, 38383), (586, 36156), (786, 26956), (879, 24104), (1048, 20217), (1172, 18078), (1572, 13478), (1758, 12052), (2344, 9039), (3013, 7032), (3144, 6739), (3516, 6026)]