3894639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 6420480

約数和(自身を除く): 2525841

約数列:

[1, 3, 7, 19, 21, 43, 57, 129, 133, 227, 301, 399, 681, 817, 903, 1589, 2451, 4313, 4767, 5719, 9761, 12939, 17157, 29283, 30191, 68327, 90573, 185459, 204981, 556377, 1298213, 3894639]

約数ペア:

[(1, 3894639), (3, 1298213), (7, 556377), (19, 204981), (21, 185459), (43, 90573), (57, 68327), (129, 30191), (133, 29283), (227, 17157), (301, 12939), (399, 9761), (681, 5719), (817, 4767), (903, 4313), (1589, 2451)]