20941178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{439}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 14413702

約数列:

[1, 2, 17, 23, 34, 46, 61, 122, 391, 439, 782, 878, 1037, 1403, 2074, 2806, 7463, 10097, 14926, 20194, 23851, 26779, 47702, 53558, 171649, 343298, 455243, 615917, 910486, 1231834, 10470589, 20941178]

約数ペア:

[(1, 20941178), (2, 10470589), (17, 1231834), (23, 910486), (34, 615917), (46, 455243), (61, 343298), (122, 171649), (391, 53558), (439, 47702), (782, 26779), (878, 23851), (1037, 20194), (1403, 14926), (2074, 10097), (2806, 7463)]