20091705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78791}}^1$

素因数の和:78816

約数の個数: 16

約数和(自身を含む): 34038144

約数和(自身を除く): 13946439

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78791, 236373, 393955, 1181865, 1339447, 4018341, 6697235, 20091705]

約数ペア:

[(1, 20091705), (3, 6697235), (5, 4018341), (15, 1339447), (17, 1181865), (51, 393955), (85, 236373), (255, 78791)]