20620214447

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{1456127}}^1$

素因数の和:1456175

約数の個数: 18

約数和(自身を含む): 25480783872

約数和(自身を除く): 4860569425

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 14161, 1456127, 10192889, 24754159, 71350223, 173279113, 420820703, 1212953791, 2945744921, 20620214447]

約数ペア:

[(1, 20620214447), (7, 2945744921), (17, 1212953791), (49, 420820703), (119, 173279113), (289, 71350223), (833, 24754159), (2023, 10192889), (14161, 1456127)]