18946642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2137}}^1$

素因数の和:2194

約数の個数: 32

約数和(自身を含む): 34481664

約数和(自身を除く): 15535022

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2137, 4274, 4433, 8866, 23507, 27781, 47014, 55562, 66247, 132494, 305591, 611182, 728717, 861211, 1457434, 1722422, 9473321, 18946642]

約数ペア:

[(1, 18946642), (2, 9473321), (11, 1722422), (13, 1457434), (22, 861211), (26, 728717), (31, 611182), (62, 305591), (143, 132494), (286, 66247), (341, 55562), (403, 47014), (682, 27781), (806, 23507), (2137, 8866), (4274, 4433)]