12712821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 20748288

約数和(自身を除く): 8035467

約数列:

[1, 3, 11, 17, 31, 33, 43, 51, 93, 129, 187, 289, 341, 473, 527, 561, 731, 867, 1023, 1333, 1419, 1581, 2193, 3179, 3999, 5797, 8041, 8959, 9537, 12427, 14663, 17391, 22661, 24123, 26877, 37281, 43989, 67983, 98549, 136697, 249271, 295647, 385237, 410091, 747813, 1155711, 4237607, 12712821]

約数ペア:

[(1, 12712821), (3, 4237607), (11, 1155711), (17, 747813), (31, 410091), (33, 385237), (43, 295647), (51, 249271), (93, 136697), (129, 98549), (187, 67983), (289, 43989), (341, 37281), (473, 26877), (527, 24123), (561, 22661), (731, 17391), (867, 14663), (1023, 12427), (1333, 9537), (1419, 8959), (1581, 8041), (2193, 5797), (3179, 3999)]