18911178

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 128

約数和(自身を含む): 51609600

約数和(自身を除く): 32698422

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 31, 33, 39, 54, 62, 66, 78, 79, 93, 99, 117, 143, 158, 186, 198, 234, 237, 279, 286, 297, 341, 351, 403, 429, 474, 558, 594, 682, 702, 711, 806, 837, 858, 869, 1023, 1027, 1209, 1287, 1422, 1674, 1738, 2046, 2054, 2133, 2418, 2449, 2574, 2607, 3069, 3081, 3627, 3861, 4266, 4433, 4898, 5214, 6138, 6162, 7254, 7347, 7722, 7821, 8866, 9207, 9243, 10881, 11297, 13299, 14694, 15642, 18414, 18486, 21762, 22041, 22594, 23463, 26598, 26939, 27729, 31837, 33891, 39897, 44082, 46926, 53878, 55458, 63674, 66123, 67782, 79794, 80817, 95511, 101673, 119691, 132246, 161634, 191022, 203346, 239382, 242451, 286533, 305019, 350207, 484902, 573066, 610038, 700414, 727353, 859599, 1050621, 1454706, 1719198, 2101242, 3151863, 6303726, 9455589, 18911178]

約数ペア:

[(1, 18911178), (2, 9455589), (3, 6303726), (6, 3151863), (9, 2101242), (11, 1719198), (13, 1454706), (18, 1050621), (22, 859599), (26, 727353), (27, 700414), (31, 610038), (33, 573066), (39, 484902), (54, 350207), (62, 305019), (66, 286533), (78, 242451), (79, 239382), (93, 203346), (99, 191022), (117, 161634), (143, 132246), (158, 119691), (186, 101673), (198, 95511), (234, 80817), (237, 79794), (279, 67782), (286, 66123), (297, 63674), (341, 55458), (351, 53878), (403, 46926), (429, 44082), (474, 39897), (558, 33891), (594, 31837), (682, 27729), (702, 26939), (711, 26598), (806, 23463), (837, 22594), (858, 22041), (869, 21762), (1023, 18486), (1027, 18414), (1209, 15642), (1287, 14694), (1422, 13299), (1674, 11297), (1738, 10881), (2046, 9243), (2054, 9207), (2133, 8866), (2418, 7821), (2449, 7722), (2574, 7347), (2607, 7254), (3069, 6162), (3081, 6138), (3627, 5214), (3861, 4898), (4266, 4433)]