20201865

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{349}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 34473600

約数和(自身を除く): 14271735

約数列:

[1, 3, 5, 15, 17, 51, 85, 227, 255, 349, 681, 1047, 1135, 1745, 3405, 3859, 5235, 5933, 11577, 17799, 19295, 29665, 57885, 79223, 88995, 237669, 396115, 1188345, 1346791, 4040373, 6733955, 20201865]

約数ペア:

[(1, 20201865), (3, 6733955), (5, 4040373), (15, 1346791), (17, 1188345), (51, 396115), (85, 237669), (227, 88995), (255, 79223), (349, 57885), (681, 29665), (1047, 19295), (1135, 17799), (1745, 11577), (3405, 5933), (3859, 5235)]