399745143

素因数分解:

$3^2\times 7^1\times {\mathrm{383}}^1\times {\mathrm{16567}}^1$

素因数の和:16963

約数の個数: 24

約数和(自身を含む): 661659648

約数和(自身を除く): 261914505

約数列:

[1, 3, 7, 9, 21, 63, 383, 1149, 2681, 3447, 8043, 16567, 24129, 49701, 115969, 149103, 347907, 1043721, 6345161, 19035483, 44416127, 57106449, 133248381, 399745143]

約数ペア:

[(1, 399745143), (3, 133248381), (7, 57106449), (9, 44416127), (21, 19035483), (63, 6345161), (383, 1043721), (1149, 347907), (2681, 149103), (3447, 115969), (8043, 49701), (16567, 24129)]