21069273

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{4259}}^1$

素因数の和:4376

約数の個数: 16

約数和(自身を含む): 30058560

約数和(自身を除く): 8989287

約数列:

[1, 3, 17, 51, 97, 291, 1649, 4259, 4947, 12777, 72403, 217209, 413123, 1239369, 7023091, 21069273]

約数ペア:

[(1, 21069273), (3, 7023091), (17, 1239369), (51, 413123), (97, 217209), (291, 72403), (1649, 12777), (4259, 4947)]