20897782

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8221}}^1$

素因数の和:8295

約数の個数: 16

約数和(自身を含む): 33151104

約数和(自身を除く): 12253322

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 8221, 16442, 254851, 337061, 509702, 674122, 10448891, 20897782]

約数ペア:

[(1, 20897782), (2, 10448891), (31, 674122), (41, 509702), (62, 337061), (82, 254851), (1271, 16442), (2542, 8221)]