20650155

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1723}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 35748864

約数和(自身を除く): 15098709

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 1723, 2397, 3995, 5169, 8615, 11985, 25845, 29291, 80981, 87873, 146455, 242943, 404905, 439365, 1214715, 1376677, 4130031, 6883385, 20650155]

約数ペア:

[(1, 20650155), (3, 6883385), (5, 4130031), (15, 1376677), (17, 1214715), (47, 439365), (51, 404905), (85, 242943), (141, 146455), (235, 87873), (255, 80981), (705, 29291), (799, 25845), (1723, 11985), (2397, 8615), (3995, 5169)]