20853985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10667}}^1$

素因数の和:10712

約数の個数: 16

約数和(自身を含む): 27651456

約数和(自身を除く): 6797471

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 10667, 53335, 181339, 245341, 906695, 1226705, 4170797, 20853985]

約数ペア:

[(1, 20853985), (5, 4170797), (17, 1226705), (23, 906695), (85, 245341), (115, 181339), (391, 53335), (1955, 10667)]