20160918981

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{6287}}^1$

素因数の和:6388

約数の個数: 96

約数和(自身を含む): 36798382080

約数和(自身を除く): 16637463099

約数列:

[1, 3, 7, 9, 19, 21, 27, 47, 57, 63, 133, 141, 171, 189, 329, 361, 399, 423, 513, 893, 987, 1083, 1197, 1269, 2527, 2679, 2961, 3249, 3591, 6251, 6287, 7581, 8037, 8883, 9747, 16967, 18753, 18861, 22743, 24111, 44009, 50901, 56259, 56583, 68229, 118769, 119453, 132027, 152703, 168777, 169749, 295489, 356307, 358359, 396081, 458109, 836171, 886467, 1068921, 1075077, 1188243, 2068423, 2269607, 2508513, 2659401, 3206763, 3225231, 5614291, 6205269, 6808821, 7525539, 7978203, 15887249, 16842873, 18615807, 20426463, 22576617, 39300037, 47661747, 50528619, 55847421, 61279389, 106671529, 117900111, 142985241, 151585857, 320014587, 353700333, 428955723, 746700703, 960043761, 1061100999, 2240102109, 2880131283, 6720306327, 20160918981]

約数ペア:

[(1, 20160918981), (3, 6720306327), (7, 2880131283), (9, 2240102109), (19, 1061100999), (21, 960043761), (27, 746700703), (47, 428955723), (57, 353700333), (63, 320014587), (133, 151585857), (141, 142985241), (171, 117900111), (189, 106671529), (329, 61279389), (361, 55847421), (399, 50528619), (423, 47661747), (513, 39300037), (893, 22576617), (987, 20426463), (1083, 18615807), (1197, 16842873), (1269, 15887249), (2527, 7978203), (2679, 7525539), (2961, 6808821), (3249, 6205269), (3591, 5614291), (6251, 3225231), (6287, 3206763), (7581, 2659401), (8037, 2508513), (8883, 2269607), (9747, 2068423), (16967, 1188243), (18753, 1075077), (18861, 1068921), (22743, 886467), (24111, 836171), (44009, 458109), (50901, 396081), (56259, 358359), (56583, 356307), (68229, 295489), (118769, 169749), (119453, 168777), (132027, 152703)]