20356726

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:520

約数の個数: 24

約数和(自身を含む): 33335280

約数和(自身を除く): 12978554

約数列:

[1, 2, 13, 26, 169, 229, 263, 338, 458, 526, 2977, 3419, 5954, 6838, 38701, 44447, 60227, 77402, 88894, 120454, 782951, 1565902, 10178363, 20356726]

約数ペア:

[(1, 20356726), (2, 10178363), (13, 1565902), (26, 782951), (169, 120454), (229, 88894), (263, 77402), (338, 60227), (458, 44447), (526, 38701), (2977, 6838), (3419, 5954)]