20486986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7229}}^1$

素因数の和:7353

約数の個数: 16

約数和(自身を含む): 33402600

約数和(自身を除く): 12915614

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7229, 14458, 93977, 187954, 787961, 1575922, 10243493, 20486986]

約数ペア:

[(1, 20486986), (2, 10243493), (13, 1575922), (26, 787961), (109, 187954), (218, 93977), (1417, 14458), (2834, 7229)]