42870009

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{421}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 70706944

約数和(自身を除く): 27836935

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 373, 421, 1119, 1263, 2611, 2947, 4849, 5473, 7833, 8841, 14547, 16419, 33943, 38311, 101829, 114933, 157033, 471099, 1099231, 2041429, 3297693, 6124287, 14290003, 42870009]

約数ペア:

[(1, 42870009), (3, 14290003), (7, 6124287), (13, 3297693), (21, 2041429), (39, 1099231), (91, 471099), (273, 157033), (373, 114933), (421, 101829), (1119, 38311), (1263, 33943), (2611, 16419), (2947, 14547), (4849, 8841), (5473, 7833)]