18860738

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{1361}}^1$

素因数の和:1430

約数の個数: 24

約数和(自身を含む): 31404996

約数和(自身を除く): 12544258

約数列:

[1, 2, 13, 26, 41, 82, 169, 338, 533, 1066, 1361, 2722, 6929, 13858, 17693, 35386, 55801, 111602, 230009, 460018, 725413, 1450826, 9430369, 18860738]

約数ペア:

[(1, 18860738), (2, 9430369), (13, 1450826), (26, 725413), (41, 460018), (82, 230009), (169, 111602), (338, 55801), (533, 35386), (1066, 17693), (1361, 13858), (2722, 6929)]