21057434

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7591}}^1$

素因数の和:7685

約数の個数: 16

約数和(自身を含む): 33708480

約数和(自身を除く): 12651046

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7591, 15182, 144229, 288458, 554143, 1108286, 10528717, 21057434]

約数ペア:

[(1, 21057434), (2, 10528717), (19, 1108286), (38, 554143), (73, 288458), (146, 144229), (1387, 15182), (2774, 7591)]