20417895

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12263}}^1$

素因数の和:12311

約数の個数: 24

約数和(自身を含む): 36350496

約数和(自身を除く): 15932601

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12263, 36789, 61315, 110367, 183945, 453731, 551835, 1361193, 2268655, 4083579, 6805965, 20417895]

約数ペア:

[(1, 20417895), (3, 6805965), (5, 4083579), (9, 2268655), (15, 1361193), (37, 551835), (45, 453731), (111, 183945), (185, 110367), (333, 61315), (555, 36789), (1665, 12263)]