21107218

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{30949}}^1$

素因数の和:30993

約数の個数: 16

約数和(自身を含む): 35654400

約数和(自身を除く): 14547182

約数列:

[1, 2, 11, 22, 31, 62, 341, 682, 30949, 61898, 340439, 680878, 959419, 1918838, 10553609, 21107218]

約数ペア:

[(1, 21107218), (2, 10553609), (11, 1918838), (22, 959419), (31, 680878), (62, 340439), (341, 61898), (682, 30949)]