21280244

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{739}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 39036480

約数和(自身を除く): 17756236

約数列:

[1, 2, 4, 23, 46, 92, 313, 626, 739, 1252, 1478, 2956, 7199, 14398, 16997, 28796, 33994, 67988, 231307, 462614, 925228, 5320061, 10640122, 21280244]

約数ペア:

[(1, 21280244), (2, 10640122), (4, 5320061), (23, 925228), (46, 462614), (92, 231307), (313, 67988), (626, 33994), (739, 28796), (1252, 16997), (1478, 14398), (2956, 7199)]