18172913

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 20666880

約数和(自身を除く): 2493967

約数列:

[1, 11, 31, 137, 341, 389, 1507, 4247, 4279, 12059, 46717, 53293, 132649, 586223, 1652083, 18172913]

約数ペア:

[(1, 18172913), (11, 1652083), (31, 586223), (137, 132649), (341, 53293), (389, 46717), (1507, 12059), (4247, 4279)]