18123189

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 30030336

約数和(自身を除く): 11907147

約数列:

[1, 3, 7, 21, 31, 41, 49, 93, 97, 123, 147, 217, 287, 291, 651, 679, 861, 1271, 1519, 2009, 2037, 3007, 3813, 3977, 4557, 4753, 6027, 8897, 9021, 11931, 14259, 21049, 26691, 27839, 62279, 63147, 83517, 123287, 147343, 186837, 194873, 369861, 442029, 584619, 863009, 2589027, 6041063, 18123189]

約数ペア:

[(1, 18123189), (3, 6041063), (7, 2589027), (21, 863009), (31, 584619), (41, 442029), (49, 369861), (93, 194873), (97, 186837), (123, 147343), (147, 123287), (217, 83517), (287, 63147), (291, 62279), (651, 27839), (679, 26691), (861, 21049), (1271, 14259), (1519, 11931), (2009, 9021), (2037, 8897), (3007, 6027), (3813, 4753), (3977, 4557)]