20397978

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{8923}}^1$

素因数の和:9058

約数の個数: 24

約数和(自身を含む): 44548608

約数和(自身を除く): 24150630

約数列:

[1, 2, 3, 6, 9, 18, 127, 254, 381, 762, 1143, 2286, 8923, 17846, 26769, 53538, 80307, 160614, 1133221, 2266442, 3399663, 6799326, 10198989, 20397978]

約数ペア:

[(1, 20397978), (2, 10198989), (3, 6799326), (6, 3399663), (9, 2266442), (18, 1133221), (127, 160614), (254, 80307), (381, 53538), (762, 26769), (1143, 17846), (2286, 8923)]