18031839

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1009}}^1$

素因数の和:1079

約数の個数: 32

約数和(自身を含む): 29475840

約数和(自身を除く): 11444001

約数列:

[1, 3, 7, 21, 23, 37, 69, 111, 161, 259, 483, 777, 851, 1009, 2553, 3027, 5957, 7063, 17871, 21189, 23207, 37333, 69621, 111999, 162449, 261331, 487347, 783993, 858659, 2575977, 6010613, 18031839]

約数ペア:

[(1, 18031839), (3, 6010613), (7, 2575977), (21, 858659), (23, 783993), (37, 487347), (69, 261331), (111, 162449), (161, 111999), (259, 69621), (483, 37333), (777, 23207), (851, 21189), (1009, 17871), (2553, 7063), (3027, 5957)]