18842978

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3947}}^1$

素因数の和:3998

約数の個数: 32

約数和(自身を含む): 36384768

約数和(自身を除く): 17541790

約数列:

[1, 2, 7, 11, 14, 22, 31, 62, 77, 154, 217, 341, 434, 682, 2387, 3947, 4774, 7894, 27629, 43417, 55258, 86834, 122357, 244714, 303919, 607838, 856499, 1345927, 1712998, 2691854, 9421489, 18842978]

約数ペア:

[(1, 18842978), (2, 9421489), (7, 2691854), (11, 1712998), (14, 1345927), (22, 856499), (31, 607838), (62, 303919), (77, 244714), (154, 122357), (217, 86834), (341, 55258), (434, 43417), (682, 27629), (2387, 7894), (3947, 4774)]