128428461

素因数分解:

$3^2\times 7^3\times {\mathrm{41603}}^1$

素因数の和:41630

約数の個数: 24

約数和(自身を含む): 216340800

約数和(自身を除く): 87912339

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 41603, 124809, 291221, 374427, 873663, 2038547, 2620989, 6115641, 14269829, 18346923, 42809487, 128428461]

約数ペア:

[(1, 128428461), (3, 42809487), (7, 18346923), (9, 14269829), (21, 6115641), (49, 2620989), (63, 2038547), (147, 873663), (343, 374427), (441, 291221), (1029, 124809), (3087, 41603)]