18837741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9547539

約数列:

[1, 3, 13, 39, 43, 47, 129, 141, 239, 559, 611, 717, 1677, 1833, 2021, 3107, 6063, 9321, 10277, 11233, 26273, 30831, 33699, 78819, 133601, 146029, 400803, 438087, 483019, 1449057, 6279247, 18837741]

約数ペア:

[(1, 18837741), (3, 6279247), (13, 1449057), (39, 483019), (43, 438087), (47, 400803), (129, 146029), (141, 133601), (239, 78819), (559, 33699), (611, 30831), (717, 26273), (1677, 11233), (1833, 10277), (2021, 9321), (3107, 6063)]