20740017

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 31190400

約数和(自身を除く): 10450383

約数列:

[1, 3, 17, 29, 37, 51, 87, 111, 379, 493, 629, 1073, 1137, 1479, 1887, 3219, 6443, 10991, 14023, 18241, 19329, 32973, 42069, 54723, 186847, 238391, 406667, 560541, 715173, 1220001, 6913339, 20740017]

約数ペア:

[(1, 20740017), (3, 6913339), (17, 1220001), (29, 715173), (37, 560541), (51, 406667), (87, 238391), (111, 186847), (379, 54723), (493, 42069), (629, 32973), (1073, 19329), (1137, 18241), (1479, 14023), (1887, 10991), (3219, 6443)]