213894723

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2243}}^1$

素因数の和:2511

約数の個数: 32

約数和(自身を含む): 344678400

約数和(自身を除く): 130783677

約数列:

[1, 3, 7, 19, 21, 57, 133, 239, 399, 717, 1673, 2243, 4541, 5019, 6729, 13623, 15701, 31787, 42617, 47103, 95361, 127851, 298319, 536077, 894957, 1608231, 3752539, 10185463, 11257617, 30556389, 71298241, 213894723]

約数ペア:

[(1, 213894723), (3, 71298241), (7, 30556389), (19, 11257617), (21, 10185463), (57, 3752539), (133, 1608231), (239, 894957), (399, 536077), (717, 298319), (1673, 127851), (2243, 95361), (4541, 47103), (5019, 42617), (6729, 31787), (13623, 15701)]