249980013

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{50593}}^1$

素因数の和:50666

約数の個数: 20

約数和(自身を含む): 379556188

約数和(自身を除く): 129576175

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 50593, 151779, 455337, 1366011, 3086173, 4098033, 9258519, 27775557, 83326671, 249980013]

約数ペア:

[(1, 249980013), (3, 83326671), (9, 27775557), (27, 9258519), (61, 4098033), (81, 3086173), (183, 1366011), (549, 455337), (1647, 151779), (4941, 50593)]