18947942

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{919}}^1$

素因数の和:1008

約数の個数: 24

約数和(自身を含む): 31314960

約数和(自身を除く): 12367018

約数列:

[1, 2, 13, 26, 61, 122, 169, 338, 793, 919, 1586, 1838, 10309, 11947, 20618, 23894, 56059, 112118, 155311, 310622, 728767, 1457534, 9473971, 18947942]

約数ペア:

[(1, 18947942), (2, 9473971), (13, 1457534), (26, 728767), (61, 310622), (122, 155311), (169, 112118), (338, 56059), (793, 23894), (919, 20618), (1586, 11947), (1838, 10309)]