20422129

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{283}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 25778112

約数和(自身を除く): 5355983

約数列:

[1, 7, 13, 61, 91, 169, 283, 427, 793, 1183, 1981, 3679, 5551, 10309, 17263, 25753, 47827, 72163, 120841, 224419, 334789, 1570933, 2917447, 20422129]

約数ペア:

[(1, 20422129), (7, 2917447), (13, 1570933), (61, 334789), (91, 224419), (169, 120841), (283, 72163), (427, 47827), (793, 25753), (1183, 17263), (1981, 10309), (3679, 5551)]