18389518

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 32744448

約数和(自身を除く): 14354930

約数列:

[1, 2, 7, 14, 37, 74, 131, 259, 262, 271, 518, 542, 917, 1834, 1897, 3794, 4847, 9694, 10027, 20054, 33929, 35501, 67858, 70189, 71002, 140378, 248507, 497014, 1313537, 2627074, 9194759, 18389518]

約数ペア:

[(1, 18389518), (2, 9194759), (7, 2627074), (14, 1313537), (37, 497014), (74, 248507), (131, 140378), (259, 71002), (262, 70189), (271, 67858), (518, 35501), (542, 33929), (917, 20054), (1834, 10027), (1897, 9694), (3794, 4847)]