21465136

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:183

約数の個数: 120

約数和(自身を含む): 55978560

約数和(自身を除く): 34513424

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 49, 56, 76, 77, 88, 98, 112, 131, 133, 152, 154, 176, 196, 209, 262, 266, 304, 308, 392, 418, 524, 532, 539, 616, 784, 836, 917, 931, 1048, 1064, 1078, 1232, 1441, 1463, 1672, 1834, 1862, 2096, 2128, 2156, 2489, 2882, 2926, 3344, 3668, 3724, 4312, 4978, 5764, 5852, 6419, 7336, 7448, 8624, 9956, 10087, 10241, 11528, 11704, 12838, 14672, 14896, 17423, 19912, 20174, 20482, 23056, 23408, 25676, 27379, 34846, 39824, 40348, 40964, 51352, 54758, 69692, 70609, 80696, 81928, 102704, 109516, 121961, 139384, 141218, 161392, 163856, 191653, 219032, 243922, 278768, 282436, 383306, 438064, 487844, 564872, 766612, 975688, 1129744, 1341571, 1533224, 1951376, 2683142, 3066448, 5366284, 10732568, 21465136]

約数ペア:

[(1, 21465136), (2, 10732568), (4, 5366284), (7, 3066448), (8, 2683142), (11, 1951376), (14, 1533224), (16, 1341571), (19, 1129744), (22, 975688), (28, 766612), (38, 564872), (44, 487844), (49, 438064), (56, 383306), (76, 282436), (77, 278768), (88, 243922), (98, 219032), (112, 191653), (131, 163856), (133, 161392), (152, 141218), (154, 139384), (176, 121961), (196, 109516), (209, 102704), (262, 81928), (266, 80696), (304, 70609), (308, 69692), (392, 54758), (418, 51352), (524, 40964), (532, 40348), (539, 39824), (616, 34846), (784, 27379), (836, 25676), (917, 23408), (931, 23056), (1048, 20482), (1064, 20174), (1078, 19912), (1232, 17423), (1441, 14896), (1463, 14672), (1672, 12838), (1834, 11704), (1862, 11528), (2096, 10241), (2128, 10087), (2156, 9956), (2489, 8624), (2882, 7448), (2926, 7336), (3344, 6419), (3668, 5852), (3724, 5764), (4312, 4978)]