21430983

素因数分解:

$3^1\times 7^3\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 33984000

約数和(自身を除く): 12553017

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 343, 353, 413, 1029, 1059, 1239, 2471, 2891, 7413, 8673, 17297, 20237, 20827, 51891, 60711, 62481, 121079, 145789, 363237, 437367, 1020523, 3061569, 7143661, 21430983]

約数ペア:

[(1, 21430983), (3, 7143661), (7, 3061569), (21, 1020523), (49, 437367), (59, 363237), (147, 145789), (177, 121079), (343, 62481), (353, 60711), (413, 51891), (1029, 20827), (1059, 20237), (1239, 17297), (2471, 8673), (2891, 7413)]