21002522

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1\times {\mathrm{571}}^1$

素因数の和:973

約数の個数: 16

約数和(自身を含む): 32247072

約数和(自身を除く): 11244550

約数列:

[1, 2, 53, 106, 347, 571, 694, 1142, 18391, 30263, 36782, 60526, 198137, 396274, 10501261, 21002522]

約数ペア:

[(1, 21002522), (2, 10501261), (53, 396274), (106, 198137), (347, 60526), (571, 36782), (694, 30263), (1142, 18391)]