21105084

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:296

約数の個数: 144

約数和(自身を含む): 67568256

約数和(自身を除く): 46463172

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 49, 52, 66, 77, 78, 84, 91, 98, 132, 143, 147, 154, 156, 182, 196, 231, 251, 273, 286, 294, 308, 364, 429, 462, 502, 539, 546, 572, 588, 637, 753, 858, 924, 1001, 1004, 1078, 1092, 1274, 1506, 1617, 1716, 1757, 1911, 2002, 2156, 2548, 2761, 3003, 3012, 3234, 3263, 3514, 3822, 4004, 5271, 5522, 6006, 6468, 6526, 7007, 7028, 7644, 8283, 9789, 10542, 11044, 12012, 12299, 13052, 14014, 16566, 19327, 19578, 21021, 21084, 22841, 24598, 28028, 33132, 35893, 36897, 38654, 39156, 42042, 45682, 49196, 57981, 68523, 71786, 73794, 77308, 84084, 91364, 107679, 115962, 135289, 137046, 143572, 147588, 159887, 215358, 231924, 251251, 270578, 274092, 319774, 405867, 430716, 479661, 502502, 541156, 639548, 753753, 811734, 959322, 1005004, 1507506, 1623468, 1758757, 1918644, 3015012, 3517514, 5276271, 7035028, 10552542, 21105084]

約数ペア:

[(1, 21105084), (2, 10552542), (3, 7035028), (4, 5276271), (6, 3517514), (7, 3015012), (11, 1918644), (12, 1758757), (13, 1623468), (14, 1507506), (21, 1005004), (22, 959322), (26, 811734), (28, 753753), (33, 639548), (39, 541156), (42, 502502), (44, 479661), (49, 430716), (52, 405867), (66, 319774), (77, 274092), (78, 270578), (84, 251251), (91, 231924), (98, 215358), (132, 159887), (143, 147588), (147, 143572), (154, 137046), (156, 135289), (182, 115962), (196, 107679), (231, 91364), (251, 84084), (273, 77308), (286, 73794), (294, 71786), (308, 68523), (364, 57981), (429, 49196), (462, 45682), (502, 42042), (539, 39156), (546, 38654), (572, 36897), (588, 35893), (637, 33132), (753, 28028), (858, 24598), (924, 22841), (1001, 21084), (1004, 21021), (1078, 19578), (1092, 19327), (1274, 16566), (1506, 14014), (1617, 13052), (1716, 12299), (1757, 12012), (1911, 11044), (2002, 10542), (2156, 9789), (2548, 8283), (2761, 7644), (3003, 7028), (3012, 7007), (3234, 6526), (3263, 6468), (3514, 6006), (3822, 5522), (4004, 5271)]