28723863

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1319}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 47139840

約数和(自身を除く): 18415977

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 1037, 1281, 1319, 3111, 3957, 7259, 9233, 21777, 22423, 27699, 67269, 80459, 156961, 241377, 470883, 563213, 1367803, 1689639, 4103409, 9574621, 28723863]

約数ペア:

[(1, 28723863), (3, 9574621), (7, 4103409), (17, 1689639), (21, 1367803), (51, 563213), (61, 470883), (119, 241377), (183, 156961), (357, 80459), (427, 67269), (1037, 27699), (1281, 22423), (1319, 21777), (3111, 9233), (3957, 7259)]