21058359

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{967}}^1$

素因数の和:1055

約数の個数: 32

約数和(自身を含む): 34569216

約数和(自身を除く): 13510857

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 967, 1037, 1281, 2901, 3111, 6769, 7259, 16439, 20307, 21777, 49317, 58987, 115073, 176961, 345219, 412909, 1002779, 1238727, 3008337, 7019453, 21058359]

約数ペア:

[(1, 21058359), (3, 7019453), (7, 3008337), (17, 1238727), (21, 1002779), (51, 412909), (61, 345219), (119, 176961), (183, 115073), (357, 58987), (427, 49317), (967, 21777), (1037, 20307), (1281, 16439), (2901, 7259), (3111, 6769)]