20499556

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 49029120

約数和(自身を除く): 28529564

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 31, 38, 44, 62, 76, 77, 113, 124, 133, 154, 209, 217, 226, 266, 308, 341, 418, 434, 452, 532, 589, 682, 791, 836, 868, 1178, 1243, 1364, 1463, 1582, 2147, 2356, 2387, 2486, 2926, 3164, 3503, 4123, 4294, 4774, 4972, 5852, 6479, 7006, 8246, 8588, 8701, 9548, 12958, 14012, 15029, 16492, 17402, 23617, 24521, 25916, 30058, 34804, 38533, 45353, 47234, 49042, 60116, 66557, 77066, 90706, 94468, 98084, 133114, 154132, 165319, 181412, 266228, 269731, 330638, 465899, 539462, 661276, 732127, 931798, 1078924, 1464254, 1863596, 2928508, 5124889, 10249778, 20499556]

約数ペア:

[(1, 20499556), (2, 10249778), (4, 5124889), (7, 2928508), (11, 1863596), (14, 1464254), (19, 1078924), (22, 931798), (28, 732127), (31, 661276), (38, 539462), (44, 465899), (62, 330638), (76, 269731), (77, 266228), (113, 181412), (124, 165319), (133, 154132), (154, 133114), (209, 98084), (217, 94468), (226, 90706), (266, 77066), (308, 66557), (341, 60116), (418, 49042), (434, 47234), (452, 45353), (532, 38533), (589, 34804), (682, 30058), (791, 25916), (836, 24521), (868, 23617), (1178, 17402), (1243, 16492), (1364, 15029), (1463, 14012), (1582, 12958), (2147, 9548), (2356, 8701), (2387, 8588), (2486, 8246), (2926, 7006), (3164, 6479), (3503, 5852), (4123, 4972), (4294, 4774)]