18784077

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 28858368

約数和(自身を除く): 10074291

約数列:

[1, 3, 13, 23, 39, 43, 69, 129, 299, 487, 559, 897, 989, 1461, 1677, 2967, 6331, 11201, 12857, 18993, 20941, 33603, 38571, 62823, 145613, 272233, 436839, 481643, 816699, 1444929, 6261359, 18784077]

約数ペア:

[(1, 18784077), (3, 6261359), (13, 1444929), (23, 816699), (39, 481643), (43, 436839), (69, 272233), (129, 145613), (299, 62823), (487, 38571), (559, 33603), (897, 20941), (989, 18993), (1461, 12857), (1677, 11201), (2967, 6331)]