20397938

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2774

約数の個数: 24

約数和(自身を含む): 34728960

約数和(自身を除く): 14331022

約数列:

[1, 2, 11, 22, 31, 62, 121, 242, 341, 682, 2719, 3751, 5438, 7502, 29909, 59818, 84289, 168578, 328999, 657998, 927179, 1854358, 10198969, 20397938]

約数ペア:

[(1, 20397938), (2, 10198969), (11, 1854358), (22, 927179), (31, 657998), (62, 328999), (121, 168578), (242, 84289), (341, 59818), (682, 29909), (2719, 7502), (3751, 5438)]