20657026

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 34760880

約数和(自身を除く): 14103854

約数列:

[1, 2, 13, 26, 37, 74, 109, 197, 218, 394, 481, 962, 1417, 2561, 2834, 4033, 5122, 7289, 8066, 14578, 21473, 42946, 52429, 94757, 104858, 189514, 279149, 558298, 794501, 1589002, 10328513, 20657026]

約数ペア:

[(1, 20657026), (2, 10328513), (13, 1589002), (26, 794501), (37, 558298), (74, 279149), (109, 189514), (197, 104858), (218, 94757), (394, 52429), (481, 42946), (962, 21473), (1417, 14578), (2561, 8066), (2834, 7289), (4033, 5122)]