209958723

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4637}}^1$

素因数の和:4705

約数の個数: 40

約数和(自身を含む): 345697968

約数和(自身を除く): 135739245

約数列:

[1, 3, 9, 13, 27, 39, 43, 81, 117, 129, 351, 387, 559, 1053, 1161, 1677, 3483, 4637, 5031, 13911, 15093, 41733, 45279, 60281, 125199, 180843, 199391, 375597, 542529, 598173, 1627587, 1794519, 2592083, 4882761, 5383557, 7776249, 16150671, 23328747, 69986241, 209958723]

約数ペア:

[(1, 209958723), (3, 69986241), (9, 23328747), (13, 16150671), (27, 7776249), (39, 5383557), (43, 4882761), (81, 2592083), (117, 1794519), (129, 1627587), (351, 598173), (387, 542529), (559, 375597), (1053, 199391), (1161, 180843), (1677, 125199), (3483, 60281), (4637, 45279), (5031, 41733), (13911, 15093)]