20197668886

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{27109}}^1$

素因数の和:27400

約数の個数: 32

約数和(自身を含む): 31949026560

約数和(自身を除く): 11751357674

約数列:

[1, 2, 31, 61, 62, 122, 197, 394, 1891, 3782, 6107, 12017, 12214, 24034, 27109, 54218, 372527, 745054, 840379, 1653649, 1680758, 3307298, 5340473, 10680946, 51263119, 102526238, 165554663, 325768853, 331109326, 651537706, 10098834443, 20197668886]

約数ペア:

[(1, 20197668886), (2, 10098834443), (31, 651537706), (61, 331109326), (62, 325768853), (122, 165554663), (197, 102526238), (394, 51263119), (1891, 10680946), (3782, 5340473), (6107, 3307298), (12017, 1680758), (12214, 1653649), (24034, 840379), (27109, 745054), (54218, 372527)]