20652905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2433

約数の個数: 32

約数和(自身を含む): 32121600

約数和(自身を除く): 11468695

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2389, 8645, 11945, 16723, 31057, 45391, 83615, 155285, 217399, 226955, 317737, 590083, 1086995, 1588685, 2950415, 4130581, 20652905]

約数ペア:

[(1, 20652905), (5, 4130581), (7, 2950415), (13, 1588685), (19, 1086995), (35, 590083), (65, 317737), (91, 226955), (95, 217399), (133, 155285), (247, 83615), (455, 45391), (665, 31057), (1235, 16723), (1729, 11945), (2389, 8645)]