21820278

素因数分解:

$2^1\times 3^1\times {\mathrm{1321}}^1\times {\mathrm{2753}}^1$

素因数の和:4079

約数の個数: 16

約数和(自身を含む): 43689456

約数和(自身を除く): 21869178

約数列:

[1, 2, 3, 6, 1321, 2642, 2753, 3963, 5506, 7926, 8259, 16518, 3636713, 7273426, 10910139, 21820278]

約数ペア:

[(1, 21820278), (2, 10910139), (3, 7273426), (6, 3636713), (1321, 16518), (2642, 8259), (2753, 7926), (3963, 5506)]