20681882

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1494

約数の個数: 24

約数和(自身を含む): 34398144

約数和(自身を除く): 13716262

約数列:

[1, 2, 13, 26, 43, 86, 169, 338, 559, 1118, 1423, 2846, 7267, 14534, 18499, 36998, 61189, 122378, 240487, 480974, 795457, 1590914, 10340941, 20681882]

約数ペア:

[(1, 20681882), (2, 10340941), (13, 1590914), (26, 795457), (43, 480974), (86, 240487), (169, 122378), (338, 61189), (559, 36998), (1118, 18499), (1423, 14534), (2846, 7267)]