18668716451

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 24261120000

約数和(自身を除く): 5592403549

約数列:

[1, 7, 11, 47, 77, 89, 149, 329, 389, 517, 623, 979, 1043, 1639, 2723, 3619, 4183, 4279, 6853, 7003, 11473, 13261, 18283, 29281, 29953, 34621, 46013, 49021, 57961, 77033, 92827, 127981, 145871, 201113, 242347, 322091, 380831, 405727, 539231, 623267, 637571, 1021097, 1407791, 1627187, 2665817, 2724167, 4362869, 4462997, 5158529, 6855937, 11390309, 17899057, 19069169, 29965837, 36109703, 47991559, 56743819, 125293399, 209760859, 242450863, 397206733, 1697156041, 2666959493, 18668716451]

約数ペア:

[(1, 18668716451), (7, 2666959493), (11, 1697156041), (47, 397206733), (77, 242450863), (89, 209760859), (149, 125293399), (329, 56743819), (389, 47991559), (517, 36109703), (623, 29965837), (979, 19069169), (1043, 17899057), (1639, 11390309), (2723, 6855937), (3619, 5158529), (4183, 4462997), (4279, 4362869), (6853, 2724167), (7003, 2665817), (11473, 1627187), (13261, 1407791), (18283, 1021097), (29281, 637571), (29953, 623267), (34621, 539231), (46013, 405727), (49021, 380831), (57961, 322091), (77033, 242347), (92827, 201113), (127981, 145871)]