21986626

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{6691}}^1$

素因数の和:6777

約数の個数: 16

約数和(自身を含む): 34691328

約数和(自身を除く): 12704702

約数列:

[1, 2, 31, 53, 62, 106, 1643, 3286, 6691, 13382, 207421, 354623, 414842, 709246, 10993313, 21986626]

約数ペア:

[(1, 21986626), (2, 10993313), (31, 709246), (53, 414842), (62, 354623), (106, 207421), (1643, 13382), (3286, 6691)]