21040382

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30851}}^1$

素因数の和:30895

約数の個数: 16

約数和(自身を含む): 35541504

約数和(自身を除く): 14501122

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 30851, 61702, 339361, 678722, 956381, 1912762, 10520191, 21040382]

約数ペア:

[(1, 21040382), (2, 10520191), (11, 1912762), (22, 956381), (31, 678722), (62, 339361), (341, 61702), (682, 30851)]