21337827

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 34099200

約数和(自身を除く): 12761373

約数列:

[1, 3, 7, 21, 31, 73, 93, 217, 219, 449, 511, 651, 1347, 1533, 2263, 3143, 6789, 9429, 13919, 15841, 32777, 41757, 47523, 97433, 98331, 229439, 292299, 688317, 1016087, 3048261, 7112609, 21337827]

約数ペア:

[(1, 21337827), (3, 7112609), (7, 3048261), (21, 1016087), (31, 688317), (73, 292299), (93, 229439), (217, 98331), (219, 97433), (449, 47523), (511, 41757), (651, 32777), (1347, 15841), (1533, 13919), (2263, 9429), (3143, 6789)]