20121844515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2081}}^1\times {\mathrm{28027}}^1$

素因数の和:30139

約数の個数: 32

約数和(自身を含む): 33612074496

約数和(自身を除く): 13490229981

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 2081, 6243, 10405, 28027, 31215, 47863, 84081, 140135, 143589, 239315, 420405, 644621, 717945, 1933863, 3223105, 9669315, 58324187, 174972561, 291620935, 874862805, 1341456301, 4024368903, 6707281505, 20121844515]

約数ペア:

[(1, 20121844515), (3, 6707281505), (5, 4024368903), (15, 1341456301), (23, 874862805), (69, 291620935), (115, 174972561), (345, 58324187), (2081, 9669315), (6243, 3223105), (10405, 1933863), (28027, 717945), (31215, 644621), (47863, 420405), (84081, 239315), (140135, 143589)]