21111714

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1087}}^1$

素因数の和:1191

約数の個数: 48

約数和(自身を含む): 49900032

約数和(自身を除く): 28788318

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 83, 117, 166, 234, 249, 498, 747, 1079, 1087, 1494, 2158, 2174, 3237, 3261, 6474, 6522, 9711, 9783, 14131, 19422, 19566, 28262, 42393, 84786, 90221, 127179, 180442, 254358, 270663, 541326, 811989, 1172873, 1623978, 2345746, 3518619, 7037238, 10555857, 21111714]

約数ペア:

[(1, 21111714), (2, 10555857), (3, 7037238), (6, 3518619), (9, 2345746), (13, 1623978), (18, 1172873), (26, 811989), (39, 541326), (78, 270663), (83, 254358), (117, 180442), (166, 127179), (234, 90221), (249, 84786), (498, 42393), (747, 28262), (1079, 19566), (1087, 19422), (1494, 14131), (2158, 9783), (2174, 9711), (3237, 6522), (3261, 6474)]