21588028

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:96

約数の個数: 144

約数和(自身を含む): 55157760

約数和(自身を除く): 33569732

約数列:

[1, 2, 4, 7, 11, 14, 17, 19, 22, 28, 31, 34, 38, 44, 49, 62, 68, 76, 77, 98, 119, 124, 133, 154, 187, 196, 209, 217, 238, 266, 308, 323, 341, 374, 418, 434, 476, 527, 532, 539, 589, 646, 682, 748, 833, 836, 868, 931, 1054, 1078, 1178, 1292, 1309, 1364, 1463, 1519, 1666, 1862, 2108, 2156, 2261, 2356, 2387, 2618, 2926, 3038, 3332, 3553, 3689, 3724, 4123, 4522, 4774, 5236, 5797, 5852, 6076, 6479, 7106, 7378, 8246, 9044, 9163, 9548, 10013, 10241, 11594, 12958, 14212, 14756, 15827, 16492, 16709, 18326, 20026, 20482, 23188, 24871, 25823, 25916, 28861, 31654, 33418, 36652, 40052, 40579, 40964, 45353, 49742, 51646, 57722, 63308, 66836, 70091, 81158, 90706, 99484, 103292, 110143, 115444, 140182, 162316, 174097, 181412, 220286, 280364, 284053, 317471, 348194, 440572, 490637, 568106, 634942, 696388, 771001, 981274, 1136212, 1269884, 1542002, 1962548, 3084004, 5397007, 10794014, 21588028]

約数ペア:

[(1, 21588028), (2, 10794014), (4, 5397007), (7, 3084004), (11, 1962548), (14, 1542002), (17, 1269884), (19, 1136212), (22, 981274), (28, 771001), (31, 696388), (34, 634942), (38, 568106), (44, 490637), (49, 440572), (62, 348194), (68, 317471), (76, 284053), (77, 280364), (98, 220286), (119, 181412), (124, 174097), (133, 162316), (154, 140182), (187, 115444), (196, 110143), (209, 103292), (217, 99484), (238, 90706), (266, 81158), (308, 70091), (323, 66836), (341, 63308), (374, 57722), (418, 51646), (434, 49742), (476, 45353), (527, 40964), (532, 40579), (539, 40052), (589, 36652), (646, 33418), (682, 31654), (748, 28861), (833, 25916), (836, 25823), (868, 24871), (931, 23188), (1054, 20482), (1078, 20026), (1178, 18326), (1292, 16709), (1309, 16492), (1364, 15827), (1463, 14756), (1519, 14212), (1666, 12958), (1862, 11594), (2108, 10241), (2156, 10013), (2261, 9548), (2356, 9163), (2387, 9044), (2618, 8246), (2926, 7378), (3038, 7106), (3332, 6479), (3553, 6076), (3689, 5852), (3724, 5797), (4123, 5236), (4522, 4774)]